Eyewear with rigid lens support

ABSTRACT

Eyewear is provided having a frame that can releasably engage a lens. The frame can have an engagement mechanism that includes an active restraint member and a passive restraint member. The active restraint member can have a first component and a second component that are operatively coupled together such that the first and second components rotate together between open and closed positions. The second component can also be configured to slide relative to the first component to engage a portion the frame when the first and second components are in the closed position to maintain the lens fitted against the frame.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. application Ser. No.13/051,889, filed on Mar. 18, 2011, which claims the benefit of U.S.Provisional Application No. 61/315,752, filed Mar. 19, 2010 and U.S.Provisional Application No. 61/426,222, filed Dec. 22, 2010, theentirety of each of which is incorporated herein by reference.

BACKGROUND

1. Field of the Inventions

The present inventions relate generally to eyewear and more specificallyto eyeglass and goggle frames, having improved comfort and fit.

2. Description of the Related Art

A wide variety of improvements have been made in recent years in theeyewear field, particularly with respect to eyewear intended for use inactive sports, including goggles and sunglasses. These improvements havebeen incorporated into eyewear and goggles having both dual and unitarylens designs. As a result, modern active sport eyewear is functionallysuperior to its predecessor eyewear in numerous ways, such as bymaximizing interception of peripheral light, reducing opticaldistortion, and increasing the wearer's comfort level.

For example, lens designs for both dual and unitary eyewear and goggledesigns can provide full side-to-side range of vision and good lateraleye protection while providing superior optical performance. Moreparticularly, in a unitary lens system, the angle of incidence from thewearer's eye to the posterior lens surface changes as the wearer's lineof sight turns in either the vertical or the horizontal planes. Thisresults in disparate refraction between light entering closer to thefront of the lens and peripheral light entering at the side portions. Toaddress this source of prismatic distortion, U.S. Pat. No. 4,859,048discloses tapering the thickness of the lens from the central portiontoward the side edge, the entirety of the disclosure of which isincorporated by reference herein.

Further, various improvements have also been made in goggle lens frametechnology that allow mounted lenses to retain their superior opticalcharacteristics provided by their as-molded geometry. For example, the“SPLICE” snow goggle manufactured by Oakley, Inc., incorporates a framedesign that mitigates bending stresses along the bridge of the goggle inorder to allow the lens to retain its as-molded geometry and maximizethe comfort for the wearer. Such systems are disclosed in U.S. patentapplication Ser. No. 12/359,175, titled Controlled Deflection Goggle,filed Jan. 23, 2009, the entire disclosure of which is incorporatedherein by reference.

Finally, numerous modifications have been made to eyeglass and goggleproducts in an effort to make these products more comfortable for thewearer. For example, different materials have been used in themanufacture of frames and lenses in order to decrease the weight andimprove the comfort of these products. These technological improvementscan be incorporated into any variety of dual or unitary lens designs,whether for eyeglass or goggle products, in order to provide a wearerwith a comfortable, optically superior eyewear product.

Further features and advantages of the present invention will becomeapparent to those of skill in the art in view of the detaileddescription of preferred embodiments which follows, when consideredtogether with the attached drawings and claims.

SUMMARY

A goggle is a semi-customizable eyewear product that can be adjusted tofit a wearer's head by adjusting a strap of the goggle. Further, aneyeglass can also be customized to the wearer through adjusting the fitand/or components of the eyeglass for achieving a desired function.Goggle and eyeglass applications include skiing, snowboarding,motocross, aquatics, and a variety of industrial safety applications,among others. Typically, goggles offer sealed protection to the eyes andadjacent areas of the wearer's face against particulate matter or water.Generally, the goggle and/or lens conforms closely to the wearer's faceand intercepts light, wind, dust, etc. from directly in front of thewearer and peripherally along the sides. A wearer can adjust the elasticstrap of the goggle to conform closely to the face of the wearer duringuse. Various features and structures of eyewear are disclosed herein.Some of these features and structures are disclosed in the context ofgoggles. For sake of brevity, the embodiments and discussion will notgenerally be repeated with respect to eyeglasses. However, thediscussion of a given feature of a goggle herein is contemplated asbeing applicable to eyeglasses as well.

A goggle usually comprises an arcuate unitary lens which extends acrossboth of the wearer's right and left eye fields of view. The lens can besupported by a frame, which typically surrounds the lens. The lens andthe frame are both configured with a downwardly concave indent ornosepiece opening for receiving the nose. The rear surface of the frame,normally covered with a foam component or other compressible material,is adapted to contact the wearer's face. Further, the elastic strap isconnected to the opposing sides or ends of the frame so that the wearercan fit and wear the goggle on their head.

When worn, the surface of the foam component or other compressiblematerial disposed at the rear of the goggle makes contact with thewearer's face. This wearer-contacting surface has a radius of curvaturein the horizontal plane that is adapted to conform from side to side ofthe wearer's face. However, some embodiments reflect the realizationthat when the goggle is placed on a wearer with a “narrow” head, thetension from the straps extending around the back of the wearer's headcan cause the sides of the goggle to bend inwardly toward a centerthereof, thereby wrapping the goggle into a tighter radius of curvatureto fit the wearer and distorting the optics of the goggle. Further, thecentral portion of the goggle can become substantially compressedagainst the wearer's forehead while a gap is formed between the sides ofthe goggle and the wearer's temples. Other poor fit or discomfortproblems can occur when a goggle is placed on a wearer with a “wide”head or when the goggle is worn over a helmet.

Thus, some embodiments reflect the realization that the lens of a gogglecan sometimes experience undesirable distortion when the goggle isfitted to a wearer's unique head profile. This distortion can sometimescause discomfort for the wearer as well as inferior optical performanceof the eyewear product. Various embodiments enable the eyewear productto exhibit enhanced structural properties in order to prevent discomfortand to maintain preferred optical characteristics of the eyewearproduct.

Further, some embodiments reflect the realization that a customizablegoggle system can be far more effective and useful to a wearer thanprior art goggles because a wearer's needs and preferences may changefrom time to time. Thus, in some embodiments, the goggle can comprise aninterchangeable goggle and goggle system in which a lens support oranterior module can be interchangeably coupled with a faceplate orposterior module. In some embodiments, the goggle and goggle system canalso comprise at least one connector that couples the anterior module tothe posterior module. The components of such a goggle and system can beinterchanged in order to create a goggle having desired optical andphysical characteristics. For example, the wearer can interchange one ormore components of the goggle in order vary the rake, internal airvolume, articulation, lens configuration, fit, comfort, and other suchoptical and physical characteristics of the goggle.

Further, some of the embodiments reflect the realization that prior artgoggles tend to create uneven pressure distribution across a variety ofwearers' heads. Thus, in some embodiments, the goggle can be configuredsuch that the posterior module of the goggle can articulate relative tothe anterior module in order to self-adjust over a variety of uniquefacial contours and head sizes in order to provide a customized fit tothe wearer. In some embodiments, the goggle can comprise an isostaticmechanism or suspension mechanism in which one or more connectors allowthe posterior module to articulate with respect to the anterior module.For example, the posterior module can be coupled to the anterior moduleusing any of a variety of connectors, such as wishbone connectors,straight links, expandable cells, pivotable couplings, rigid couplings,and the like.

Additionally, some of the embodiments reflect the realization that priorart goggles generally caused deflection of the lens when the goggle isfitted onto the head of the wearer. Accordingly, in some embodiments,the goggle can be configured such that the anterior module comprises agenerally rigid component or portion such that bending stresses exertedon the anterior module are withstood when the goggle is being worn.Thus, the lens of the goggle can be maintained in its as-moldedconfiguration when in use, thereby preserving the optical quality of thelens. In some embodiments, prismatic shift or other optical distortionsare minimized when in use.

Furthermore, some of the embodiments reflect the realization that priorart goggles do not facilitate interchangeability of lenses absent asignificant stress or force to remove or replace the lens. Thus, in someembodiments, the goggle can comprise an interchangeable lens mechanismthat allows a lens to be interchanged with and retained by the goggle.For example, the anterior module of the goggle can comprise one or morepockets or clips that can operate to retain one or more of the edges orsides of the lens. The lens can be retained by the interchangeable lensmechanism such that the lens “floats” or is secured to the anteriormodule without being bended from its as-molded configuration. Thus, theoptical qualities of the lens can be preserved.

One or more of the features discussed herein can be incorporated intoembodiments of the goggles. As such, any variety of combinations ofthese features can be provided as will be apparent to one of skill inthe art.

Moreover, in some embodiments, a goggle is provided that can comprise alens support or anterior module and a faceplate or posterior module. Thelens support can be adapted to support at least one lens in a wearer'sfield of view. The faceplate can be flexible and adapted to conform tothe contours of a wearer's face. In some embodiments, the lens supportor anterior module can be interchangeably connectable with the faceplateor posterior module to modify at least one physical characteristic ofthe goggle.

In some embodiments, the faceplate can be coupled to the lens supportsuch that when the goggle is worn by the wearer, opposing ends of theflexible faceplate move in a direction opposite to a direction in whicha central portion of the faceplate moves when a force is exerted on oneof the opposing portions and the central portion of the faceplate.Further, in some embodiments, in response to a force, the opposing endsof the flexible faceplate can move away from the opposing ends of thelens support while a central portion of the faceplate moves toward acentral portion of the lens support. Further, the side portions of thefaceplate can move generally independently of each other.

Some embodiments can comprise a suspension assembly that can compriseone or more suspension members or connectors that interconnect theflexible faceplate with the lens support at respective suspensionpoints. In some embodiments, the at least one connector can beinterchangeable with the lens support and the faceplate.

For example, the suspension members can enable pivotable movement of thefaceplate relative to the lens support at the respective suspensionpoints to modify a contour of the faceplate relative to the contour ofthe wearer's face. The suspension members can be substantiallyincompressible. The suspension members can comprise one of a wishboneconnector, a curved or straight link connector, an expandable cellconnector, and other such components. One or more suspension members mayalso be positioned in a manner that allows rolling or a “seesaw” effectas it responds to pressure on the frame. The goggle can optionallycomprise at least one elongate link member coupled to the faceplateadjacent to each of the respective suspension points. The link memberscan be coupled to the respective suspension members and to the faceplatefor imparting rotation at a first part of the goggle to a second part ofthe goggle for moving the opposing ends of the faceplate in an oppositedirection of the central portion thereof.

Further, the goggle can be optionally configured such that thesuspension members comprise a pair of upper suspension membersinterconnecting an upper portion of the flexible faceplate with an upperportion of the lens support. The suspension members can also comprise apair of lower suspension members interconnecting a lower portion of theflexible faceplate with a lower portion of the lens support. In suchembodiments, the upper suspension members can be coupled to thefaceplate and the lens support at locations generally symmetricallyspaced from a center point or center line of the faceplate, such asadjacent to side portions thereof. Further, the lower suspension memberscan be coupled to the faceplate and the lens support at locationsgenerally symmetrically spaced from a center point or center line of thefaceplate, such as adjacent to side portions thereof.

Further in some embodiments, the goggle can optionally comprise at leastone elongate link member coupled to the faceplate adjacent to each ofthe respective suspension points. The link members can be coupled to therespective suspension members and to the faceplate for impartingrotation at a first part of the goggle to a second part of the gogglefor moving opposing ends of the faceplate in an opposite direction ofthe central portion thereof.

In embodiments comprising the suspension assembly, the goggle canoptionally be configured with the suspension assembly coupling theflexible faceplate to the lens support such that movement of the centralportion of the flexible faceplate toward the central portion of the lenssupport causes separation of the opposing portions of the faceplate fromopposing portions of the lens support when the goggle is worn by thewearer. In such embodiments, the suspension assembly can comprise one ormore suspension members.

Moreover, some embodiments of the goggle can be configured to comprise agenerally rigid lens support or anterior module. The generally rigidlens support or anterior module can support a lens in the wearer's fieldof view while preventing substantial bending or optical distortion ofthe lens.

Additionally, the goggle can optionally comprise an interchangeable lensmechanism that facilitates removal and retention of a lens relative tothe lens support or anterior module of the goggle. The interchangeablelens mechanism can comprise one or more pockets and/or clips that canengage with a portion of the lens for retaining the lens relative to thegoggle.

In some embodiments, the goggle can comprise a pair of outriggers thateach outrigger comprises a pair of fastening portions configured tointerconnect the anterior module with the posterior module. Thefastening portions can be attachable to the anterior and posteriormodules at coupling regions thereof. The anterior and posterior modulesof the goggle can be coupled together by the outriggers and without theuse of specialized tools, single-use fasteners or permanent fasteners.In some embodiments, the outriggers can function as the primary mode ofcoupling or attachment means between the anterior and posterior modules,such as between a lens support and a faceplate. However, a secondarymode of coupling or attachment means can be employed, such as snap-fitmembers, hook and loop members, and/or other types of interference fitor frictional engagement members. These secondary connectors can be usedin combination with the outriggers to couple the anterior and posteriormodules together. In particular, these secondary connectors can be usedas an initial coupling mechanism to hold the anterior and posteriormodules together as an assembly while the outriggers are attached ordetached from the assembly. Thus, the overall assembly, including theoutriggers and other components discussed herein, can enable a wearer toquickly manipulate an interchange any given component of the assembly.

Further, the outriggers can each further comprise a pin member extendingfrom a body thereof. In such an embodiment, the anterior module cancomprise a pair of apertures that are configured to receive the pinmembers of the respective outriggers when the outriggers are coupled tothe anterior and posterior modules. The combined interconnections of thepin members and the fastening portions of the outriggers can thusprovide a fixed rotational position of each outrigger relative to theanterior module. Additionally, the posterior module can compriseapertures configured to receive the pin member when the outriggers arecoupled to the anterior and posterior modules. In some embodiments, thecoupling regions of the anterior module comprise a recess. For example,the recess can be configured to receive the fastening portions of theoutriggers.

Some embodiments of the goggle can comprise a latch member that iscoupled to the anterior module. The latch member can be rotatablebetween an open position in which a lens can be inserted or removed fromthe lens support and a closed position in which the lens is secured tothe lens support. The goggle can also further comprise a biasing membercoupled to the latch member. The biasing member can provide a biasingforce tending to urge the latch member toward the closed position. Thebiasing member can be rotatably coupled to the latch member, and in someembodiments, the biasing member can also be rotatably coupled to theanterior module. Thus, in some embodiments, an outrigger can comprises apin member extending through corresponding apertures in the biasingmember and the latch member, and the pin member can provide an axis ofrotation for the biasing member and the latch member.

In accordance with some embodiments, the goggle can comprise at leastone port disposed along the periphery of the lens support. The port canprovide an airflow passage for introducing air over an interconnectingportion of the goggle for improving ventilation and reducing fogging ofthe goggle. For example, the port can exhibit Venturi airflowcharacteristics. In some embodiments, the goggle can comprise a pair ofports disposed at the central portion of the lens support above the lensof the goggle.

BRIEF DESCRIPTION OF THE DRAWINGS

The above-mentioned and other features of the inventions disclosedherein are described below with reference to the drawings of thepreferred embodiments. The illustrated embodiments are intended toillustrate, but not to limit the inventions. The drawings contain thefollowing figures:

FIG. 1 is a perspective view of a prior art goggle.

FIG. 2 is a front view of the goggle shown in FIG. 1.

FIG. 3 is a horizontal cross-sectional view taken along the lines 3-3 ofFIG. 2.

FIG. 4 is a top view of the goggle of FIG. 1 wherein bending forces F, Fare exerted on the goggle.

FIG. 5 is a top view of the goggle of FIG. 1 being worn on a narrowhead.

FIG. 6 is a top view of the goggle of FIG. 1 being worn on a wide head.

FIG. 7 is an exploded perspective view of a goggle havinginterchangeable anterior and posterior components, according to anembodiment.

FIG. 8 is a top view of the goggle shown in FIG. 7.

FIG. 9 is a perspective view of a goggle having interchangeable anteriorand posterior components shown in an assembled state, according to anembodiment.

FIG. 10 is a top view of the goggle shown in FIG. 9.

FIG. 11 is a perspective view of another goggle having interchangeableanterior and posterior components shown in an assembled state, accordingto another embodiment.

FIG. 12 is a top view of the goggle shown in FIG. 11.

FIG. 13 is a top perspective view of a goggle having an isostaticfaceplate with flexible connectors, according to an embodiment.

FIG. 14 is a bottom perspective view of the goggle shown in FIG. 13.

FIG. 15 is a top view of the goggle shown in FIG. 13, wherein thefaceplate is in an undeflected position.

FIG. 16A is a top view of the goggle shown in FIG. 13, wherein thefaceplate is in a narrowed deflected position.

FIG. 16B is a top view of the goggle shown in FIG. 13, wherein thefaceplate is in a widened deflected position.

FIG. 17 is a top perspective view of another goggle having an isostaticfaceplate with pivotable connectors, according to another embodiment.

FIG. 18 is a bottom perspective view of the goggle shown in FIG. 17.

FIG. 19 is a top view of the goggle shown in FIG. 17, wherein thefaceplate is in an undeflected position.

FIG. 20A is a top view of the goggle shown in FIG. 17, wherein thefaceplate is in a narrowed deflected position.

FIG. 20B is a top view of the goggle shown in FIG. 17, wherein thefaceplate is in a widened deflected position.

FIG. 21A is a partial top view schematic diagram of a partiallypivotable straight connector for an isostatic faceplate wherein theconnector is pivoted to a first position to accommodate a wide head,according to an embodiment.

FIG. 21B is a partial top view schematic diagram of the connector shownin FIG. 21A wherein the connector is pivoted to a second position toaccommodate a narrow head.

FIG. 22A is a partial top view schematic diagram of the connector shownin FIG. 22A wherein the connector is pivoted to a first position toaccommodate a large head.

FIG. 22B is a partial top view schematic diagram of a dual pivotablestraight connector for an isostatic faceplate wherein the connector ispivoted to a second position to accommodate a small head, according toanother embodiment.

FIG. 23A is a partial top view schematic diagram of a wishbone connectorfor an isostatic faceplate wherein the connector is in an undeflectedposition, according to an embodiment.

FIG. 23B is a partial top view schematic diagram of the connector shownin FIG. 23A wherein the connector is pivoted to a first position.

FIG. 23C is a partial top view schematic diagram of the connector shownin FIG. 23A wherein the connector is pivoted to a second position.

FIG. 23D is a partial top view schematic diagram of the connector shownin FIG. 23A wherein the connector is pivoted to a third position.

FIG. 23E is a partial top view schematic diagram of the connector shownin FIG. 23A wherein the connector is pivoted to a fourth position.

FIG. 24A is a top view of a wishbone connector according to anembodiment.

FIG. 24B is a top view of a wishbone connector according to anotherembodiment.

FIG. 25A is a top view of a wishbone connector according to yet anotherembodiment.

FIG. 25B is a top view of a wishbone connector according to yet anotherembodiment.

FIG. 26 is a top view of an expandable cell connector according to yetanother embodiment.

FIG. 27 is a top view schematic diagram of a pair of wishbone connectorsillustrating movement of the connectors, according to an embodiment.

FIG. 28 is a perspective view of a goggle having an interchangeable lensmechanism, according to an embodiment.

FIG. 29 is a front view of the goggle shown in FIG. 28.

FIG. 30 is a perspective view of a lens for use with the goggle shown inFIG. 28, according to an embodiment.

FIG. 31A is a perspective view of the goggle shown in FIG. 28 whereinthe lens is being interchanged into the goggle, according to anembodiment.

FIG. 31B is a side perspective view of the goggle shown in FIG. 28wherein a first side of the lens is inserted into a receptacle of theinterchangeable lens mechanism, according to an embodiment.

FIG. 31C is a side perspective view of the goggle shown in FIG. 28wherein the first side of the lens is inserted into the receptacle ofthe interchangeable lens mechanism and a second side of the lens isfitted against the goggle.

FIG. 31D is a perspective view of the goggle shown in FIG. 28illustrating the second side of the lens being fitted against the goggleand a pivotable securing member in a disengaged position, according toan embodiment.

FIG. 31E is a perspective view of the goggle shown in FIG. 28illustrating the second side of the lens being fitted against the goggleand the pivotable securing member in an engaged position, according toan embodiment.

FIG. 32 is a top cross-sectional view of the goggle shown in FIG. 28illustrating engagement of the first side of the lens in the receptacleof the interchangeable lens mechanism, according to an embodiment.

FIG. 32A is an enlarged cross-sectional view of a portion of the goggleshown in FIG. 32.

FIG. 32B is another enlarged cross-sectional view of another portion ofthe goggle shown in FIG. 32.

FIG. 33 is a perspective view of a goggle having an interchangeable lensmechanism and an isostatic faceplate wherein the lens is separated fromthe goggle, according to another embodiment.

FIG. 34A is a partial perspective view of the goggle shown in FIG. 33illustrating a second side of the lens is being fitted against thegoggle, according to an embodiment.

FIG. 34B is a partial perspective view of the goggle shown in FIG. 33illustrating first and second securing members in disengaged positions,according to an embodiment.

FIG. 34C is a partial perspective view of the goggle shown in FIG. 33illustrating the first and second securing members in engaged positions,according to an embodiment.

FIG. 35 is a top view schematic diagram of a rigid anterior frame of agoggle, according to an embodiment.

FIG. 36 is a perspective of a goggle, according to another embodiment.

FIG. 37 is a side perspective view of the goggle shown in FIG. 36,wherein an engagement mechanism of the goggle is in a closed position.

FIG. 38 is a side perspective view of the goggle shown in FIG. 36,wherein the engagement mechanism of the goggle is in an open position.

FIG. 39 is a perspective view of the goggle shown in FIG. 36, whereinthe engagement mechanism is in the open position and a lens assembly ofthe goggle is separated from the goggle.

FIG. 40A is a side view of a biasing mechanism of the goggle shown inFIG. 36, according to an embodiment.

FIG. 40B is an end view of the biasing mechanism shown in FIG. 40A.

FIG. 40C is a perspective view of the biasing mechanism shown in FIG.40A.

FIG. 41A is a rear perspective view of a latch mechanism of the goggleshown in FIG. 36, according to an embodiment.

FIG. 41B is a front perspective view of the latch mechanism shown inFIG. 41A.

FIG. 42 is a perspective view of the lens assembly of the goggle shownin FIG. 36, according to an embodiment.

FIG. 43 is a cross-sectional side view of the lens assembly shown inFIG. 42.

FIG. 44 is a top view of the goggle shown in FIG. 36, according to anembodiment.

FIG. 45 is a cross-sectional side view of the goggle taken along sectionlines 45-45 of FIG. 44.

FIG. 46 is a front perspective view of an isostatic posterior framecomponent of the goggle shown in FIG. 36, according to an embodiment.

FIG. 47 is a side perspective view illustrating secondary or initialattachment of the isostatic posterior frame component of FIG. 46 with aframe of the goggle shown in FIG. 36, according to an embodiment.

FIG. 48A is a front perspective view of the outrigger of the goggleshown in FIG. 44, according to an embodiment.

FIG. 48B is a rear perspective view of the outrigger shown in FIG. 48A.

FIG. 49 is a top perspective view of the goggle shown in FIG. 44,wherein an outrigger is shown in a detached position.

FIG. 50 is a side view of the goggle shown in FIG. 44, wherein theoutrigger is being attached to the goggle, according to an embodiment.

FIG. 51 is a perspective across-sectional view of the goggle taken alongsection lines 51-51 of FIG. 44.

FIG. 52 is a perspective view of an eyeglass, according to anotherembodiment.

FIG. 53 is a perspective view of the eyeglass shown in FIG. 50, whereinan engagement mechanism is in the open position and a lens of theeyeglass is separated from the eyeglass.

FIG. 54 is a side perspective view of the eyeglass shown in FIG. 50,wherein the engagement mechanism of the eyeglass is in an open position.

FIG. 55 is a rear perspective view of the eyeglass shown in FIG. 50,wherein the engagement mechanism of the eyeglass is in an open state anda latch member is in a disengaged position.

FIG. 56 is a rear perspective view of the eyeglass shown in FIG. 50,wherein the engagement mechanism of the eyeglass is in a closed stateand the latch member is in the disengaged position.

FIG. 57 is a rear perspective view of the eyeglass shown in FIG. 50,wherein the engagement mechanism of the eyeglass is in the closed stateand the latch member is in an engaged position.

FIG. 58 is a top cross sectional view taken along lines 58-58 of FIG.55, illustrating pivoting clearance of the engagement mechanism and thelatch member in the disengaged position.

DETAILED DESCRIPTION

While the present description sets forth specific details of variousembodiments, it will be appreciated that the description is illustrativeonly and should not be construed in any way as limiting. Additionally,although particular embodiments of the present inventions may bedisclosed or shown in the context of unitary or dual lens eyewearsystems, such embodiments can be used in both unitary and dual lenseyewear systems. Further, various applications of such embodiments andmodifications thereto, which may occur to those who are skilled in theart, are also encompassed by the general concepts described herein.Furthermore, although various embodiments are shown in use with goggles,embodiments can also be used with eyeglasses and other forms of eyewear.

Some goggle embodiments are provided that overcome many of thedisadvantages of the prior art, such as preferential bending, poorcomfort, and optical distortion of the lens. Various embodiments areprovided that can improve the overall comfort and fit of the goggle on awide range of head geometries. Some embodiments are configured such thatthe goggle can actively self-adjust to the head geometry of a givenwearer using an isostatic suspension mechanism. Some embodiments areconfigured with a rigid lens support such that the goggle can preventbending of the lens and thereby prevent optical distortion. Further,some embodiments can comprise a lens retention mechanism that enables alens to be quickly removed and replaced with another given lens. Variousmechanisms and features for providing one or more of these advantagescan be incorporated into various embodiments of the goggle.

Prior Art Goggle Design and Use

FIGS. 1-5 illustrate a common prior art goggle design and its use. FIG.1 illustrates a goggle 10 that comprises a goggle frame 12, an elasticstrap 14, and a foam component 16 attached to a posterior portion of thegoggle frame 12. The goggle frame 12 also comprises an indent ornosepiece 18. In use, the wearer can position the goggle frame 12 ontoher face and adjust the elastic strap 14 around the back of her head inorder to firmly, but comfortably secure the goggle frame in place. FIG.5 illustrate a top view of a wearer's head 40 onto which the goggle 10has been placed.

The foam component 16 is intended to contact the wearer's face and allowthe goggle 10 to conform to the surface of the wearer's face. However,gaps frequently form between the foam component 16 and the surface ofthe wearer's face due to the preferential bending of the goggle 10.Furthermore, certain portions of the foam component 16 can often behighly compressed while other portions are not compressed at all. Inthis regard, the foam component 16 will fail to properly distributestresses along the surface of the wearer's face resulting in stressconcentrations along the front or side of the wearer's head, such asalong the forehead, temples, and cheekbones. Some embodiments reflectthe realization that such stress concentrations are created due to thepreferential bending of the goggle frame 12 and the poor adaptability ofthe goggle frame 12 to various head sizes.

FIG. 3 illustrates a cross sectional top view of the goggle 10. Asshown, a lens 20 of the goggle 10 is mounted in the goggle frame 12.FIG. 3 illustrates the goggle frame 12 and the lens 20 in an unloadedposition. In some embodiments, the goggle frame 12 and the lens 20 arenot bent from their as-molded configuration. As such, at least sideportions 22, 24 of the lens 20 can be configured to define a commoncenter of curvature A in this example. In the as-molded configuration, acentral section 26 of the lens 20 defines a preferred geometry that canprovide desirable optical characteristics for the goggle 10. However,these desirable optical characteristics are not maintained when thegoggle 10 is worn by the user in a loaded position.

FIG. 4 shows the lens 20 of the goggle 10 in the loaded position. Theloaded position is generally assumed when the goggle 10 is positioned onthe head of the wearer. As illustrated in FIG. 4, bending forces F, Fcan be exerted on the sides of the frame 12 and cause bending of theframe 12 and the lens 20. These forces F, F can be caused by the elasticstrap 14 during use of the goggle 10 by the wearer.

When the goggle frame 12 and the lens 20 are bended to the loadedposition, the goggles 10 generally exhibit preferential bending at amidpoint 28 of the lens 20. Some embodiments reflect the realizationthat a disadvantage of such preferential bending at the midpoint 28 ofthe lens 20 creates bending of the frame 12 at the nosepiece 18. Asshown in FIG. 2, the nosepiece 18 has an unloaded geometry that definesa given width. Generally, the nosepiece 18 allows the wearer tocomfortably position the goggle 10 on the bridge of the wearer's nose.However, preferential bending of the frame 12 will generally cause thewidth of the nosepiece 18 to decrease. As a result, the wearer's nosemay be pinched and create discomfort for the wearer.

Additionally, the preferential bending also causes the centers ofcurvature of the side portions 22, 24 of the lens 20 to be significantlydisplaced from the common center of curvature A to the displaced centersof curvature B, C. The central section 26 of the lens 20 is alsosignificantly deformed from its unloaded position. This deformation ofthe lens 20 substantially worsens the original or as-molded opticalcharacteristics of the lens 20.

For example, the lens 20 can exhibit substantial prismatic shift andother optical distortions that tend to tire the eyes of the wearer andreduce the wearer's ability to accurately perceive the position ofobjects. These disadvantages may not only make use of the goggle 10uncomfortable, but can potentially affect the wearer's performance of agiven activity. In fast-paced activities, such as skiing, snowboarding,skydiving, motocross and the like, where goggles are commonly used, thedisadvantages caused by preferential bending of the lens 20 and theframe 12 can be exacerbated.

FIGS. 5-6 illustrate yet other disadvantages of such a prior art goggle10. The top view of FIG. 5 shows a goggle 10 fitted onto a narrow head40, and FIG. 6 shows the goggle 10 fitted onto a wide head 42. Whenfitted on a narrow head 40, the goggle 10 can bend about a centralsection thereof, thus resulting in deformation of the lens and varioussignificant disadvantages, such as those noted above with regard to FIG.3. Further, centralized portions 62 of the foam component 16 canexperience greater compression 44 than side portions 60, which may begenerally uncompressed as indicated at 46. Because the wearer has anarrow head, a gap may be created between the sides of the wearer's headand side portions 60 of the goggle 10 as the goggle 10 is fitted againstthe wearer's head. This uneven fit can reduce the air volume within thegoggle in the central section, which may reduce the anti-foggingeffectiveness of the goggle 10. The uneven fit may also cause unevenpressure and discomfort against the head 40 of the wearer.

With regard to FIG. 6, when fitted on a wide head 42, the goggle mayagain experience bending of the lens 20 (albeit toward a larger radiusof curvature, which still results in optical distortion). Further, dueto the preferential bending of the goggle 10, the foam component 16 canoften experience excessive compression 48 along side portions 60 of thefoam component 16. Additionally, centralized portions 62 of the foamcomponent 16 may actually be separated from the wearer's forehead 64 bya gap 66. Although the gap 66 may be minor, such gapping can beproblematic in inclement weather or water-related applications, as maybe present in skiing and scuba diving. In such applications, gapping cancause impaired vision. Further, the uneven compression of the foamcomponent 16 can create uneven pressure and discomfort against the head42 of the wearer. As a result, the wearer can generally experiencegreater discomfort and fatigue.

Interchangeable Component Goggle Embodiments

Some embodiments reflect the realization that in many situations, thegoggle 10 may bend as it is fitted onto a wearer's head, thus resultingin deformation of the lens 20, a poor fit that creates uneven pressureand discomfort across the wearer's head, and/or reduced anti-foggingcapabilities. Additionally, some embodiments reflect the realizationthat the orientation of the goggle 10 with respect to the wearer's lineof sight may be difficult to precisely adjust. Thus, the wearer may beat a disadvantage in performing activities in which vision could beenhanced by precisely adjusting the orientation of the lens (such as the“rake” of the lens).

Accordingly, some embodiments provide a manner for improving thecomfort, fit, optical quality, anti-fogging, and/or customization andinterchangeability of components of a goggle. Some embodiments canprovide a goggle that includes an anterior module or lens support thatcan be interchanged with a posterior module. For example, one or moreanterior modules (or lens supports) can be interchangeable with one ormore posterior modules (or faceplates, which can be fitted against theface of a wearer).

Some embodiments can provide a goggle that includes an isostaticfaceplate configured to provide uniform pressure distribution of theface-contacting portion of the goggle against the face of the weareracross a range of head sizes. Such embodiments can mitigate unevenpressure distribution by allowing differential adjustability of aposterior module relative to an anterior module of the goggle.

Some embodiments can also provide a goggle in which the anterior moduleor lens support is operative to support the lens of the goggle in anundeflected or optically preferred orientation to optimize the opticalqualities of the lens. For example, at least a portion of the anteriormodule or lens support can be substantially rigid to prevent bending ofthe lens. Further, some embodiments can provide a goggle at having aquick release lens mechanism.

These and other features can be incorporated into a single goggle orused independently of each other to provide for a plurality of distinctgoggle embodiments.

Some embodiments of the goggle can comprise separable components thatcan be interchangeably used in order to customize the goggle to thewearer's preferences. In some embodiments, the goggle can compriseseparable components that can be interchangeably used to modify amechanical and/or cosmetic feature of the goggle.

For example, separable components can be interchangeably used to modifyat least one of the “rake” of the lens, the enclosed air volume capacitywithin the goggle, structural relationship between the anterior moduleand the posterior module, the articulation between the anterior moduleand the posterior module, the biasing of the posterior module, the fitof the goggle, and other mechanical and/or cosmetic features.

FIGS. 7-12 show an embodiment of a goggle 100. The goggle 100 cancomprise a lens support or anterior module 102, a posterior module 104,and at least one connector 106 extending between the anterior module 102and the posterior module. The anterior module 102 can support a lens inthe wearer's field of view. In some embodiments, the anterior module 102can be flexible. However, in some embodiments, the anterior module 102can comprise at least one substantially rigid component and/or framethat supports or maintains the lens in a manner that prevents distortionof the lens under normal use conditions.

FIGS. 7 and 8 illustrate the goggle 100 in a disassembled state, andFIGS. 9-10 illustrate the goggle 100 in an assembled state wherein theconnector(s) 106 is coupled with the anterior module 102 and theposterior module 104. FIGS. 11-12 illustrate another embodiment of agoggle in an assembled state wherein a different embodiment of theconnector(s) 106 is coupled with an anterior module 102 and a posteriormodule 104.

The components of the goggle can be interchangeable or replaceable withother components. The posterior module 104 can be configured to beinterchangeable and removably attachable to the anterior module 102. Oneor more anterior modules 102 can be interchanged with a plurality ofposterior modules 104 in order to provide a variable and customizableconfiguration depending on user preferences. Further, a common anteriormodule 102 can be interchangeable with one of a variety of posteriormodules 104. For example, the goggle 100 can be configured such that thewearer can interchange components of the goggle 100 in order to adjustthe goggle 100 to modify a fit between the anterior module 102 and theposterior module 104, a configuration of the anterior module 102 and/orthe posterior module 104, and/or an interconnection between the anteriormodule 102 and the posterior module 104.

As noted above, the goggle 100 can comprise the connector(s) 106. Theconnector(s) 106 can releasably or permanently couple the anteriormodule 102 with the posterior module 104. The connector(s) 106 cancomprise either a movable or fixed component that interconnects theanterior module 102 with the posterior module 104. The connector(s) 106can extend partially or completely around a perimeter of the anteriormodule 102 and/or the posterior module 104.

The configuration of the connector(s) 106 can be modified orinterchanged to directly influence the fit between the anterior andposterior modules and/or the manner in which the posterior module and/orthe anterior module functions in the goggle. The configuration of theconnector(s) 106 may be varied while the configuration of the posteriorand/or anterior module remains constant. In some embodiments, both theconfiguration of the connector(s) 106 and the configuration of theposterior and/or anterior module can be varied. The connector(s) 106 canalso be configured in a variety of different connection modes andpurposes. Thus, in this and other embodiments disclosed and discussedfurther herein, the movement of the posterior module can be performedsubstantially independently of movement of the anterior module. Thus, inembodiments, the posterior module may flex and be shaped to the face ofthe wearer to maximize comfort and fit while the anterior module ismaintained in a substantially undeflected state, thus avoiding opticaldistortion of a lens (whether dual or unitary) supported by the anteriormodule.

For example, the connector(s) 106 can be configured to provide a rigid,stationary, or fixed relationship between the connector(s) 106 and theanterior and/or posterior modules 102, 104. In such embodiments, theconnector(s) 106 can establish a spacing, position, or orientation ofthe posterior module 104 relative to the anterior module 102. Further,the connector(s) 106 can be interchanged to modify the spacing,position, or orientational relationship between the anterior andposterior modules 102, 104.

Further, in some embodiments, the connector(s) 106 can also beconfigured to provide a flexible, movable, rotatable, translatable, orpivotable relationship between the connector(s) 106 and the anteriorand/or posterior modules 102, 104. For example, the connector(s) 106 canbe coupled to the anterior module 102 and to the posterior module 104 ina manner that allows the connector(s) 106 to move or rotate relative toat least one of the anterior module 102 and the posterior module 104. Inthis manner, the connector(s) 106 can enable the posterior module 104 toflex, move, rotate, translate, or pivot relative to at least one of theanterior module 102. In this manner, the goggle 100 can provide anindependent suspension or isostatic mechanism that can equalize orevenly distribute the pressure of the goggle along and against the areasat which the goggle contacts the face of the wearer. The independentsuspension or isostatic mechanism can provide differential adjustabilityof the posterior module relative to the anterior module in order toequalize pressure distribution exerted by the posterior module againstthe head of the wearer.

Further, in some embodiments, the connector(s) 106 can beinterchangeable with the goggle 100 in order to provide a differentconnection mode and/or a customizable configuration depending on wearerpreferences. For example, different embodiments of the at least oneconnector(s) 106 can be interchanged with the goggle (such as shown inthe embodiments shown in FIGS. 9-12).

The connector(s) 106 can be formed separately from the anterior andposterior modules 102, 104. The connector(s) 106 can be removable fromthe goggle and interchangeable in order to allow the wearer to adjust agiven characteristic of the goggle. Further, the connector(s) 106 can becoupled to one of the posterior module 104 and anterior module 102 in amanner that allows relative movement between the connector(s) 106 and atleast one of the posterior module 104 and the anterior module 102. Insome embodiments, the ends of the connector(s) 106 can be attached tothe anterior and/or posterior modules 102, 104 by means of thermalbonding, adhesive bonding, mechanical engagement, and/or other couplingmethods known in the art. Various embodiments are shown in FIGS. 11-23E,which will be discussed further below.

However, in some embodiments, the connector(s) 106 can also bemonolithically formed with either of the anterior or posterior modules102, 104.

The connector(s) 106 can also comprise one or more subcomponents, forexample, that can articulate with respect to each other to provide anarticulating connector(s) 106. Further, the connector(s) 106 can beformed from various types of materials, for example, to providerigidity, flexibility, compressibility, or other desirable mechanical ormaterial characteristics. Thus, the connector(s) 106 can comprisepivotable links, rigid links, flexible bodies, leaf springs, coilsprings, rigid bodies, compressible bodies, rod-shaped bodies,wishbone-shaped bodies, diamond-shaped bodies, gaskets, and/orexpandable cells.

In some embodiments, the goggle 100 can comprise a single connector 106.For example, a single connector 106 can be in the form of a gasket, pad,or other unitary structure that extends about the periphery of theanterior and posterior modules 102, 104 and interconnects the anteriorand posterior modules 102, 104. Further, in some embodiments, the gogglecan comprise multiple connectors 106.

As shown in FIGS. 7-10, in some embodiments, the connector(s) 106 caninterconnect with respective anterior and posterior connection points108, 110 located on the respective ones of the anterior and posteriormodules 102, 104. The anterior and posterior connection points 108, 110can provide a rigid, stationary, or fixed relationship between theconnector(s) 106 and the anterior and/or posterior modules 102, 104and/or a movable, rotatable, translatable, or pivotable relationshipbetween the connector(s) 106 and the anterior and/or posterior modules102, 104.

The anterior and posterior connection points 108, 110 can be formed in avariety of configurations. For example, in the illustrated embodiment ofFIGS. 7-10, the anterior and posterior connection points 108, 110 cancomprise a complementary surface structure such as a recess or socketthat is configured to engage a corresponding surface structure on theconnector(s) 106. Further, in some embodiments, the anterior andposterior connection points 108, 110 can comprise protrusions thatextend rearwardly and anteriorly, respectively, which can be configuredto engage with the connector(s) 106. Nevertheless, any of the anteriorconnection points and/or the posterior connection points can comprise aprotrusion, recess, or socket for coupling with the connector(s).

In some embodiments, the configuration of the anterior and posteriorconnection points 108, 110 can be modified to directly influence themanner in which the connector(s), the posterior module, and/or theanterior module function in the goggle. In some embodiments, theconfiguration of the anterior and posterior connection points 108, 110may be the only variable while the configuration of the posterior and/oranterior module remains constant. In some embodiments, both theconfiguration of the posterior and/or anterior connectors and theconfiguration of the posterior and/or anterior module can be varied.

Referring to FIG. 8, the faceplate or posterior module 104 of the goggle100 can extend between a first lateral edge 105 and a second lateraledge 107. The direct line distance, in the nature of a secant to thecurvature of the faceplate, will, in a properly fitting goggle,correspond to the width of the wearer's face at the point of contactbetween lateral edges 105 and 107, and the wearer's head. That secantlength in an unstressed goggle will typically be within the range ofbetween at least about 4 inches and/or less than or equal to about 7inches. Often, the range can be between at least about 5½ and/or lessthan or equal to at least about 6½ inches. In accordance with someembodiments, the secant distance between lateral edges 105 and 107 maybe varied by at least about 0.5 inches, and generally between at leastabout 1 inch and/or less than or equal to about 2 inches, withoutchanging the curvature of the lens.

As discussed below, embodiments of a goggle system can be provided inwhich at least one of the anterior module 102, the posterior module 104,and/or the connector(s) 106 can be selectively interchangeable by thewearer to customize at least one of the characteristics of the goggle.

In some embodiments, the goggle system can comprise a plurality ofcomponents, connectors, anterior modules, and/or posterior moduleshaving different geometric characteristics that can induce a desired“rake” in the goggle. For example, the goggle system can comprise aplurality of posterior modules 104 having different geometriccharacteristics that induce a desired “rake” in the goggle. The “rake”of the goggle generally refers to the orientation of the lens relativeto a vertical line. An adjustment in the rake of the goggle can allowthe wearer to adjust an optical centerline of the lens such that theoptical centerline is displaced away from a normal straight-ahead lineof sight toward an activity-specific line of sight of the wearer.

For example, some embodiments can allow the rake of the goggle to becustomized for activities in which the wearer frequently gazesdownwardly relative to the straight-ahead line of sight (to view thepath immediately in front of the wearer) or upwardly relative to thewearer's straight-ahead line of sight. By adjusting the opticalcenterline to correspond more closely to the activity-specific line ofsight, the wearer can minimize image shift or prismatic distortion thatoccurs when the wearer's gaze (i.e. the activity-specific line of sight)passes across the lens. This can be advantageous for sports that requirequick reaction times and frequent monitoring of the terrain in front ofthe wearer, such as downhill skiing, snowboarding, motocross, and thelike.

The rake of the goggle can be adjusted such that the optical centerlineof the lens is approximately parallel with the activity-specific line ofsight. Further, the rake of the goggle can be adjusted such that theoptical centerline of the lens is approximately coaxial with theactivity-specific line of sight.

Accordingly, in some embodiments, a posterior module can attach with ananterior module and position the lens from the wearer's head at adifferent vortex distance than that of another posterior module. Inparticular, different posterior modules can be interchanged to allow thewearer to induce a different rake in the goggle depending on whichposterior module is used. Further, different connectors or anteriormodules can also be interchanged to allow the wearer to induce adifferent rake or to otherwise affect the geometry or spacing of thegoggle relative to the wearer's face. The difference in spacing orposition can be created due to geometric properties of at least one ofthe posterior module, the anterior module, and/or connectors between theposterior module and the anterior module.

Some embodiments of the goggle system can comprise a plurality ofcomponents, connectors, anterior modules, and/or posterior modules thateach result in different air volumes within the goggle in order toadjust the anti-fogging capabilities of the goggle. As will beappreciated, the larger the volume of air within the goggle, the lowerthe likelihood of fogging of the lens of the goggle under a given set ofconditions.

For example, depending on the activity, a wearer may remove and replacea given posterior module with another posterior module that increases ordecreases the volume of air trapped within the goggle between the lensand the wearer's face. In some embodiments, the connectors, anteriormodules, and/or posterior modules can be configured to adjust the spacebetween the anterior module and the wearer's face, such as by varyingthickness of padding, thickness of the body of the posterior module,and/or varying the length and/or size of connector(s) used between theposterior module and the anterior module.

Further, the goggle system can comprise a plurality of differentcomponents, connectors, anterior modules, and/or posterior modules thatcan allow a wearer to select between various types of materials,material or mechanical properties, design features, and sizes. In someembodiments, the connectors or components can be formed to provide aminimal or low-profile goggle appearance. The connectors or componentscan be configured to provide a minimal overall goggle thickness.

For example, posterior modules can be provided in small, medium, large,and extra large sizes in order to allow a wearer to obtain a tailored tofit for their goggle. Each has dynamic conformability through a range ofhead sizes or geometries. In some embodiments, the posterior modules canbe configured to provide biasing toward a desired default position, suchas being biased inwardly (for narrow head sizes), outwardly (for widehead sizes), toward a center thereof, frustoconically, cylindrically,spherically, or toward a standard position (for average head sizes).Thus, a posterior module can be configured to assume an undeflected,biased position from which the posterior module can be deflected whenthe goggle it is positioned on the face of the wearer. The undeflected,biased position can be selected to improve the fit and conformance ofthe posterior module for a given head shape.

Further, the posterior modules can also be selected based on thethickness, width, material, and configuration of padding of theposterior module. Moreover, some embodiments can allow wearers toincorporate electronics, such as audio and telecommunication equipment,such as an MP3 player or cell phone into the goggle. For example, theanterior module, the posterior module, the strap, and/or othercomponents of the goggle can support one or more electronic devices foruse by the wearer. Thus, embodiments provide for an interchangeablegoggle having superior customization and capabilities.

In addition to the interchangeability of the anterior and posteriormodules in order to provide customizable geometries and configurationsof the goggle, the connector(s) 106, the posterior connection point(s),and/or the anterior connection point(s) can also be modified to allowadjustment the rake, component size, air volume, and/or othercharacteristics of the goggle. In some embodiments, the size, shape,and/or configuration of the connector(s) 106, the posterior connectionpoint(s), and/or the anterior connection point(s) can be selected inorder to modify characteristics of the goggle, such as those discussedabove. In some embodiments, at least one of the connector(s) 106, theposterior connection point(s), and/or the anterior connection point(s)can be interchanged in order to modify the rake, component size, airvolume, and/or other characteristics of the goggle.

FIGS. 11-12 illustrate another embodiment of a goggle 140. While thegoggle 140 can comprise a lens support or anterior module 102 and aposterior module 104, similar to the goggle 100 discussed above, thegoggle 140 shown in FIGS. 11-12 can comprise a different embodiment ofthe connector(s) discussed above. In particular, the goggle 140 cancomprise an arcuate wishbone connector 142. Various embodiments of thewishbone connector 142 are discussed and illustrated herein, forexample, in FIGS. 11-27.

In some embodiments, the wishbone connector 142 can be coupled to theanterior module 102 and to the posterior module 104 in a manner thatallows the wishbone connector 142 to move, flex or rotate relative to atleast one of the anterior module 102 and the posterior module 104. Thegoggle 140 can provide differential adjustability of the posteriormodule relative to the anterior module in order to dynamically conformto the wearer's face and tend to equalize pressure distribution exertedby the posterior module against the head of the wearer.

The wishbone connector 142 can be coupled to the anterior module 102 atat least one point and to the posterior module 104 at at least onepoint. For example, in embodiments such as that illustrated in FIGS.11-12, the wishbone connector 142 is coupled to the anterior module 102at a single point and to the posterior module at two points. Such aconstruction can tend to encourage flexion of the posterior module 104while the anterior module 102 remains generally undeflected. In suchembodiments, the lens supported by the anterior module 102 may thereforebe generally undeflected, thus resulting in improved optical performanceof the goggle.

The wishbone connector 142 can be movably or rotatably coupled to atleast one of the anterior module 102 and the posterior module 104. Inorder to provide a movable or rotatable relationship between thewishbone connector 142 and at least one of the anterior module 102 andthe posterior module 104, wishbone connector 142 can comprise a flexibleor pivotable joint formed at one of the connection points of thewishbone connector 142 and the anterior module 102 and/or the posteriormodule 104.

For example, the wishbone connector 142 can comprise a pivotableconnection point 144. In some embodiments, the pivotable connectionpoint 144 can be configured as a hinge joint or rotatable couplingformed between the wishbone connector 142 and the anterior module 102.

Further, the wishbone connector 142 can also comprise a flexiblematerial that is used to create a flexible or pivotable joint. Such anembodiment is illustrated and discussed below with reference to FIGS.13-16.

In the embodiment illustrated in FIGS. 11-12, the wishbone connector 142is coupled to the posterior module 104 at first and second posteriorconnection points 146, 148. In some embodiments, the first and secondposterior connection points 146, 148 provide a fixed, rigid, orstationary coupling between the wishbone connector 142 and the posteriormodule 104. However, the first and second posterior connection points146, 148 can provide a movable, rotatable, or pivotable coupling betweenthe wishbone connector 142 and the posterior module 104.

The wishbone connector 142 can be configured to impart a desiredrelative movement between the anterior module 102 and the posteriormodule 104. As discussed and shown further below with respect to FIGS.21A-27, the size, shape, and coupling mode of the wishbone connector canbe varied in order to achieve a desirable articulation of the posteriormodule 104 relative to the anterior module 102. For example, themovement of the posterior module 104 can be performed substantiallyindependently of movement of the anterior module 102. Theseconsiderations and alterations can be made in order to enhance the fitof the goggle, to provide a customized articulating for a specific rangeof head sizes or activities, and/or to modify the goggle design. In someembodiments, this mechanism can serve to enhance the comfort and fit ofthe posterior module 104 while preserving the optical qualities of alens supported by the anterior module 102.

The interchangeable goggle embodiments discussed above with respect toFIGS. 7-12 can incorporate various mechanisms and features discussed ingreater detail below, and optionally, in an interchangeable system. Someof these features will now be discussed in greater detail with referenceto specific embodiments. While the features discussed herein can beincorporated into one or more of the interchangeable goggle embodiments,the features discussed herein can also be incorporated into one or moregoggle embodiments that do not provide an interchangeability ofcomponents as discussed above with respect to FIG. 7-12.

Isostatic Faceplate Goggle Embodiments

Many prior art goggle designs share the deficiency of allowingpreferential bending at a midpoint of the goggle frame as the goggle istightened on a wearer's head that is narrower than the unstressedlateral edge to edge dimension of the goggle. Such preferential bendingcreates an inferior fit, reduced optical quality, and may even causephysical and optical discomfort for the wearer. Therefore, someembodiments reflect the realization that the preferential bending ofprior art goggle frames can be reduced and/or eliminated in order toenhance the comfort and performance of a goggle, such as that disclosedin copending U.S. patent application Ser. No. 12/359,175, filed on Jan.23, 2009, titled Controlled Deflection Goggle, the entirety of which isincorporated herein by reference. In addition, some embodimentsdisclosed herein reflect the realization that a customized fit can beachieved by allowing portions of the goggle to dynamically articulatewith respect to each other and actively adjust to contours of thewearer's face without requiring corresponding bending of the lens.

FIGS. 13-20 illustrate an isostatic faceplate mechanism that can beprovided in accordance with some embodiments. As used herein, the term“isostatic faceplate mechanism” or “isostatic faceplate” can refergenerally to a mechanism having an anterior module or frame and aposterior module or frame, wherein the posterior module can beadjustable relative to and/or independently of the anterior module toallow the posterior module to have a customized fit against the wearer'shead. For example, this relative movement can further allow a desiredshape of the anterior module to be maintained during flexing of theposterior module in order to prevent optical distortion of a lens orlenses supported by the anterior module. For example, in someembodiments, connectors between the anterior and posterior modules canallow a posterior module to articulate with respect to the anteriormodule to permit movement of the posterior module independently ofmovement of the anterior module. The posterior module can self-adjust tothe shape and contour of the wearer's face, while maintaining theoptical alignment of the lens contained in the anterior module.

As shown in FIGS. 13-16B, a goggle 200 can comprise a lens support oranterior module 202, a posterior module 204, and at least one connector206. The isostatic faceplate mechanism of the goggle 200 can be formedusing the connector(s) 206 and the anterior and posterior modules 202,204. The isostatic faceplate mechanism can provide differentialadjustability of the posterior module relative to the anterior module inorder to equalize pressure distribution exerted by the posterior moduleagainst the head of the wearer.

In the embodiment illustrated in FIGS. 13-16B, the connector(s) 206 cancomprise a flexible coupling 210 that couples the connector(s) 206 tothe anterior module 202. In this manner, the flexible coupling 210 canallow the connector(s) 206 to be coupled to the anterior faceplate 202while permitting relative movement therebetween. For example, themovement of the posterior module 204 can be performed substantiallyindependently of movement of the anterior module 202. Thus, similar tothe pivotable embodiment illustrated in FIGS. 11-12, the connector(s)206 can enable articulation of the posterior module 204 relative to theanterior module 202. In some embodiments, this mechanism can serve toenhance the comfort and fit of the posterior module 204 while preservingthe optical qualities of a lens supported by the anterior module 202.

The flexible coupling 210 can comprise a resilient material. Forexample, the flexible coupling 210 can be fabricated using a polymer ormetal that is compressible, elastic, and/or soft or semi-rigid. In suchembodiments, the flexible coupling 210 can extend between the anteriormodule 202 and a body 212 of the connector(s) 206 and be rigidlyattached thereto such that the flexibility of the flexible coupling 210facilitates relative movement between the connector(s) 206 and theanterior module 202.

The connector(s) 206 can also comprise a pair of posterior ends 214 thatcan be coupled to the posterior module 204. The posterior ends 214 canbe fixedly or movably attached to the posterior module 204 by means ofthermal bonding, adhesive bonding, snap fit or other mechanicalengagement, and/or other coupling methods known in the art. In someembodiments, the posterior ends 214 of the connector(s) 206 can beformed as widened attachment elements. As illustrated, the widenedattachment elements can be configured to provide an increased contactarea between the connector(s) 206 and the posterior module 204 tofacilitate attachment of the connector(s) 206 to the posterior module204. As discussed above with respect to the embodiment shown in FIGS.7-10, the posterior module 204 can comprise connection points, recesses,ridges, and the like to which the posterior ends 214 can be bondedand/or mechanically engaged. The discussion of these features isincorporated here and will not be repeated for the sake of brevity.

Additionally, the embodiment illustrated in FIGS. 13-16B can beconfigured such that the anterior module 202 comprises a semi-rigid orrigid material and/or construction. The anterior module 202 can supportthe lens in such a manner as to prevent substantial bending of the lensduring use, thus providing optimal optical quality.

FIGS. 15-16B illustrate top views of the goggle 200 in which theposterior module 204 is shown in an undeflected position 250 anddeflected positions 252, 254, respectively. FIG. 16A illustrates thedeflection of the posterior module 204 from the undeflected position 250shown in FIG. 15 to the narrowed deflected position 252 in order toaccommodate a narrow head size. FIG. 16B illustrates the deflection ofthe posterior module 204 from the undeflected position 250 shown in FIG.15 to the widened deflected position 254 in order to accommodate a widehead size.

As shown in FIG. 16A, the posterior module 204 can deflect relative tothe anterior module 202 when an anterior force Fa is exerted against acentral portion 256 of the posterior module 204. Such an anterior forceFa is directed generally forwardly as a wearer with a narrow head placesthe goggle 200 on their head. Because the wearer has a narrow head, agap would otherwise exist between the sides of the wearer's head andside portions of the goggle as the goggle is fitted against the wearer'shead. This typical situation is shown and described above in FIG. 5.

However, in the embodiment illustrated in FIG. 16A, side portions 260 ofthe posterior module 214 can be drawn generally away or separated fromthe anterior module 202, thus converging onto the sides of the wearer'shead which can improve fit and pressure distribution against thewearer's head. The central portion 256 of the posterior module 204therefore moves in a direction generally toward the anterior module 202while the side portions 260 of the posterior module 204 move in adirection generally away from the anterior module 202. Due to thearticulation of the connectors 206 and the posterior module 204 relativeto the anterior module 202, the posterior module 204 can be deflectedtowards a narrowed deflected position 252 in order to accommodate anarrow head size.

Similarly, FIG. 16B illustrates the goggle 200 wherein the posteriormodule 204 is deflected toward a widened deflected position 254. In FIG.16B, the posterior module 204 can deflect relative to the anteriormodule 202 when lateral forces Fb are exerted against one or both of theside portions 260 of the posterior module 204. Such lateral forces Fbare directed generally outwardly against the posterior module 204 as awearer with a wide head places the goggle 200 on their head. Because thewearer has a wide head, the side portions would otherwise besignificantly compressed against the sides of the wearer's head, and thecentral portion of the goggle may make little contact or pressureagainst the central part of the wearer's head. This typical situation isshown and described above in FIG. 6.

However, in the embodiment illustrated in FIG. 16B, side portions 260 ofthe posterior module 214 can be deflected laterally and cause a centralportion 256 of the posterior module 204 to converge toward the centralpart of the wearer's head in order to better distribute pressure againstthe wearer's head. The central portion of the posterior module 204 movesin a direction generally away from the anterior module 202 while theside portions 260 of the posterior module 204 move in a directiongenerally toward the anterior module 202. Due to the articulation of theconnectors 206 and the posterior module 204 relative to the anteriormodule 202, the posterior module 204 can be deflected towards a wideneddeflected position 258 in order to accommodate a wide head size.

The movement of the posterior module 204 can be at least partiallycontrolled by movement of the connectors 206. In some embodiments, theconnectors 206 can be generally rigid bodies. In such embodiments,pivoting or rotation of the connectors 206 can cause one end of theconnectors 206 to move generally toward the anterior module 202 whileanother end of the connectors 206 will move generally away from theanterior module 202. Thus, movement of a portion of the posterior module204 can immediately cause corresponding movement of another portion ofthe posterior module 204. For example, a wishbone connector can providethis function. These features and functions can be implemented in any ofthe isostatic faceplate mechanism embodiments, which can be incorporatedinto any of the goggle embodiments.

Accordingly, the isostatic faceplate mechanism can provide differentialadjustability of the posterior module relative to the anterior module inorder to equalize pressure distribution across the wearer's head and toenhance the fit and comfort of the goggle over a wide range of headsizes. In some embodiments, the isostatic faceplate mechanism can causedisplacement of portions of the posterior module in response to anapplied force.

For example, a portion of the posterior module can adjust in a directiongenerally toward or away from the anterior module in response to anapplied force while another portion of the posterior module adjusts inan opposite direction that is generally away from or towards theanterior module. In some embodiments, if a portion of a first posteriormodule is urged away from the anterior module due to an applied force(caused for example, while putting the goggles on), at least a secondportion of the posterior module can be drawn towards the anterior module(which is reverse the direction of the first portion). In accordancewith some embodiments, the deflection of the posterior module to provideconformance of the posterior module along the contours of the face ofthe wearer can aid in maintaining the orientation of the anterior moduleand lens of the goggle relative to the face of the wearer in a desiredand generally constant orientation.

Further, independent articulation of the posterior module relative tothe anterior module can allow the anterior module to support the lens ina generally undeflected orientation, thus enhancing optical performanceof the lens. Moreover, in some embodiments that use a rigid anteriormodule, the flexibility and adjustability of the goggle are notcompromised.

FIGS. 17-18 illustrate another embodiment of an isostatic faceplatemechanism incorporated into a goggle 300. The goggle 300 can comprise alens support or anterior module 302 and a posterior module 304. Theposterior module 304 can be coupled to the anterior module by at leastone connector 306.

The connector(s) 306 can comprise either a movable or a fixed componentthat interconnects the anterior module 302 with the posterior module304. The connector(s) 306 can comprise a compressible, anincompressible, a flexible, and/or inflexible material. The topperspective view of FIG. 17 illustrates that the connector(s) 306 cancomprise a wishbone connector, similar to the embodiment illustrated anddiscussed above in FIGS. 11-12. The discussion of these features willnot be repeated here, but is incorporated from the above discussion.

The bottom perspective view of FIG. 18 illustrates that the connector(s)306 can also comprise an elongate link or arm 310. The arm 310 can beformed from a generally rigid material or a flexible material. Thus, thearm 310 can provide a generally fixed or a variable or dynamic spacingbetween the anterior module 302 and the posterior module 304. The use ofthe arm 310 can influence the articulation of the posterior module 304relative to the anterior module 302. For example, in some embodiments,an upper pair of connectors may provide a dynamic articulation throughthe use of wishbone connectors while a lower pair of connectors mayprovide a simple articulation through the use of elongate arms.

FIG. 19 illustrates a top view of the goggle 300 wherein the posteriormodule 304 is in an undeflected position 320. As such, the posteriormodule 304 can be biased towards the undeflected position 320. AlthoughFIG. 19 illustrates the posterior module 304 in a widened position, theposterior module 304 can also be biased towards a narrow position.

FIG. 20A illustrates the posterior module 304 in a narrowed deflectedposition 322, with the undeflected position 320 being shown in dashedlines. Similarly to the embodiment shown and discussed in FIGS. 15-16B,an outwardly directed force Fa can be exerted against the posteriormodule 304 such that a central portion 330 is urged generally toward theanterior module 302. As the central portion 330 moves closer to theanterior module 302, side portions 332 of the posterior module 304 canbe drawn generally away or separated from the anterior module 302. Asdiscussed above with respect to FIGS. 15-16B, the connectors 306 cancomprise a generally rigid material that enables opposing ends of theconnectors 306 to move in generally opposite directions in response torotation or pivoting of the connectors 306. In this manner, portions ofthe posterior module 304 can have interdependency of motion which canfacilitate self-customization of the contour of the posterior module304.

FIG. 20B illustrates the goggle 300 wherein the posterior module 304 isin a widened deflected position 360. As shown, forces Fb exerted on theside portions 332 of the posterior module 304 can urge the side portions332 generally towards the anterior module 302. Because of this motion,the central portion 330 of the posterior module 304 can be drawngenerally away or separated from the anterior module 302. Accordingly, awearer having a wide head can have a generally customized fit whenwearing the goggle. In some embodiments, the posterior module 304 canself-adjust to the contour of the wearer's head.

In some embodiments, the isostatic faceplate mechanism can thereforeallow self-adjusting of the posterior module of the goggle independentof movement of the anterior module. The movement of opposing ends orsides of the posterior module can be generally mirrored based on thelocation of an applied force. However, the connectors of the goggle canmove independently of each other such that the articulation of one sideof the posterior module is different from the articulation of the otherside of the posterior module. Although such differences in articulationmay be uncommon, this capability of some embodiments of the isostaticfaceplate mechanism highlights the superior adjustability andself-customization that can be provided by the goggle.

Further, as shown in FIG. 18, some embodiments of the goggle can beprovided with rigid or semi-rigid connectors. The rigid or semi-rigidconnectors can support a portion of the posterior module at a givenorientation relative to the anterior module and provide a pivot pointfor articulation in a lower portion of the posterior module.

The arms 310 shown in the embodiment of FIG. 18 are positioned adjacentto opposing sides of the anterior module 302. The arms 310 can beoriented such that longitudinal axes thereof converge at a pointanterior to the face of the wearer and/or anterior to the goggle 300. Insome embodiments, the arms 310 can support opposing sides of theposterior module 304 at a predetermined width or position relative tothe anterior module 302. As such, when the goggle 300 is donned by awearer, a lower portion 370 of the posterior module 304 can achievemoderate articulation using the pivot points created by the arms 310.Further, an upper portion 372 of the posterior module 304 can achieve amore aggressive articulation by virtue of the wishbone connectors 308.In such an embodiment, the articulation of the lower portion 370 and theupper portion 372 can provide dynamic adjustability of the posteriormodule 304.

Additionally, in some embodiments, the arms 310 can comprise a generallyresilient or flexible material. The arms 310 can be pretensioned orbiased towards a given position. For example, the arms 310 can be biasedtowards a narrow position such that the arms 310 can be widened when thegoggle 300 is worn by a wearer. Biasing of the arms 310 can help inachieving an adequate seal between the posterior module 304 and thewearer's face.

As noted herein, some embodiments can provide for an interchangeablegoggle by which a wearer can customize one or more components of thegoggle. Some of the features and functions of the components, such asthe shape, size, and biasing of the posterior module, the connectors,and the anterior module are a few of the parameters that can becustomized through a modular goggle.

For example, a wearer could purchase connector arms were connectors thatmaintain a desired default orientation of the posterior module relativeto the anterior module. Further, a wearer could purchase an anteriormodule having a desired size or coverage. As discussed further below,various types of connectors can be implemented in embodiments of thegoggles.

FIGS. 21A-B illustrates an embodiment of a movable connector 400 that iscoupled with a lens support or anterior module 402 and a posteriormodule 404. The connector 400 comprises a rotatable segment 410 that iscoupled to the anterior module 402 that at a rotatable joint 412. Therotatable segment 410 can define a length 414 can be rotated along anarcuate path 420 defined by the length 414. The connector 400 can berigidly coupled to the posterior module 404 such that the orientation ofthe segment 410 is fixed relative to the posterior module 404. Forexample, the connector 400 can be oriented at a perpendicular angle withrespect to the posterior module 404.

FIG. 21A illustrates the rotatable segment 410 positioning the posteriormodule 404 in a widened deflected position 440. FIG. 21B illustrates therotatable segment 410 positioning the posterior module 404 in a narroweddeflected position 442. Due to the rigid coupling between the rotatablesegment 410 and the posterior module 404, a rotatable segment 410 canconnect with the posterior module 404 at a single point while providingan effect that is similar to the effect created by a wishbone connector.That is, movement of a central region of the posterior module 404 cantrigger a corresponding opposing movement of a side region of theposterior module 404 relative to the anterior module 402.

FIGS. 22A-B illustrate another embodiment of a moveable connector 460.The connector 460 can be coupled with a lens support or anterior module462 and a posterior module 464. The connector 460 can comprise arotatable segment 466 that is rotatably coupled to both the anteriormodule 462 and the posterior module 464.

In contrast to the embodiment illustrated in FIGS. 21A-B, the embodimentof the connector 460 shown in FIGS. 22A-B provides rotatable movement ofthe rotatable connector 466 relative to both the anterior module 462 andthe posterior module 464. Accordingly, the articulation of the posteriormodule 464 relative to the anterior module 462 can be different than inthe embodiment of FIGS. 21A-B. In particular, the embodiment of FIGS.22A-B can provide a more subtle collapsing of a side region 470. Therotational movement of the rotatable segment 466 relative to theposterior module 462 can allow the posterior module 464 to maintain agenerally parallel orientation relative to the anterior module 462during articulation. Further, the rotatable segment 466 can also permitthe posterior module 464 to be compressed more closely toward theanterior module 462 than in the embodiment shown in FIGS. 21A-B, due tothe rotational coupling of the rotatable segment 466 and the posteriormodule 464.

Accordingly, while the posterior module 464 can achieve a wideneddeflected position 480, as shown in FIG. 22A, the posterior module 462can all also achieve an intermediate narrowed position 482, as shown inFIG. 22B. The widened deflected position 480 may provide a larger orflatter contour and width for the wearer's head than the wideneddeflected position 440 illustrated in FIG. 21A. The widened deflectedposition 480 may be within a good range for a large, generally flatforehead. The intermediate narrowed position 482 can provide a largerwidth for the wearer's head than the narrowed deflected position 442illustrated in FIG. 21B. The intermediate narrowed position 482 may bewithin a good range for a small-sized head.

In some embodiments, the size, configuration, and coupling mode of theconnector can be selectively configured in order to achieve a desiredarticulation between the anterior module and the posterior module. Asillustrated at discussed above with respect to FIGS. 21A-22B, someembodiments can be provided with a rotatable coupling at at least oneconnection point of the connector and one of the anterior module and theposterior module.

Further, one or both of the coupling joints between the connector andthe anterior module and the posterior module can be configured to allowthe connector to be disengaged therefrom. In this manner, the connectorcan be selectively replaced with a connector having a desired mechanicalattribute. As such, the wearer can customize the goggle to their ownspecifications.

FIGS. 23A-E illustrate various positions of an embodiment of a connector500 coupled with a lens support or anterior module 502 and a posteriormodule 504. As shown, the connector 500 can be rotatably coupled to theanterior module 502. The connector 500 can comprise a wishbone connector510 that is coupled to a link 512. The link 512 can comprise a shortsegment that interconnects the wishbone connector 510 with the anteriormodule 502.

In some embodiments, the link 512 can be rotatably coupled to both thewishbone connector 510 and the anterior module 502. Further, the link512 can define a length 514. As shown in FIG. 23A, to wishbone connector510 and the link 512 can separate the posterior module 504 from theanterior module 502 by a separation distance 516. Due to the rotationalcoupling of the link 512, the connector 500 and the posterior module 504can rotate with respect to the anterior module 502 generally along arotational path 518. However, in contrast to the rotatable wishboneconnector shown in FIGS. 17-20B, the rotational path 518 represents arange of possible rotational positions that can vary due to therotational coupling between the link 512 and both the anterior module502 and the wishbone connector 510. In fact, the range of rotationalpositions provided by the rotational path 518 increases as the length514 of the link 512 is increased. Indeed, by varying the length 514 ofthe link 512 and the separation distance 516, the articulation of theposterior module 504 can be modified to a desirable range.

FIGS. 23A-E illustrate several possible rotational orientations of theconnector 500 and the posterior module 504 relative to the anteriormodule 502. FIG. 23A represents a position of the posterior module 504in which a medium or intermediate-sized head could be accommodated.FIGS. 23B-C illustrate progressively narrower positions of the posteriormodule 504 while FIGS. 23D-E illustrate progressively wider positions ofthe position posterior module 504.

The embodiment illustrated in FIGS. 23A-E provides an example of aconnector that can incorporate more than one component in a movableassembly in order to provide a more dynamic articulation of theposterior module relative to the anterior module. In some embodiments,three or more components can be used in the assembly to enhance thearticulation of the goggle.

FIGS. 24A-25B illustrate additional embodiments of a connector that canbe used in some embodiments of the goggle. FIGS. 24A-B illustrateembodiments of the connector in which geometric constraints have beenmodified to create a desired articulation of any posterior modulerelative to any anterior module of the goggle.

For example, FIG. 24A shows a connector 600 that comprises awishbone-shaped body 602 and a pivotal coupling 604 extending from thebody 602. The pivotal coupling 604 can be rotatably coupled to theanterior module of the goggle. Further, first and second ends 606, 608of the body 602 can be coupled to the posterior module of the goggle.The ends 606, 608 can be rigidly or rotatably coupled to the posteriormodule. As illustrated, the pivotal coupling 604 can be spaced at aseparation distance D1 from a dashed line 610 representing the locationof the posterior module. Further, the first end 606 can be spaced fromthe pivotal coupling 604 at a first radius R1. The second end 608 can bespaced from the pivotal coupling 604 at a second radius R2.

In some embodiments, the first and second radii R1, R2 can be generallyequal to each other. In such embodiments, rotational movement of theconnector 600 about the pivotal coupling 604 can then create equaldisplacement of the first and second ends 606, 608, which can result ingenerally equal and opposite displacement of portions of the posteriormodule 610 coupled to the respective first and second ends 606, 608 ofthe connector 600.

However, FIG. 24B illustrates a connector 620 that provides differentarticulation than the connector 600. The connector 620 comprises awishbone-shaped body 622, a pivotal coupling 624 extending from the body622, and first and second ends 626, 628. As illustrated, the pivotalcoupling 624 can be spaced at a separation distance D2 from a dashedline 630 representing the location of the posterior module. Further, thefirst end 626 can be spaced from the pivotal coupling 624 at a thirdradius R3, and the second end 628 can be spaced from the pivotalcoupling 624 at a fourth radius R4.

In some embodiments, the third and fourth radii R3, R4 can be differentdistances. As illustrated, the third radius R3 can be approximatelydoubled the fourth radius R4. However, the third and fourth radii R3, R4can be selectively adjusted in order to achieve a desired articulation,as described below.

In contrast to the embodiment of the connector 600 shown in FIG. 24A,the connector 620 shown in FIG. 24B creates different amounts ofdisplacement at the first and second ends at 626, 628 of the connector620 in response to rotation about the pivotal coupling 624. Thus, aforce for displacement in a given direction against a portion of theposterior module 630 can create a muted, albeit responsive displacementof another portion of the posterior module 630. Embodiments of thegoggle can be provided in which the dimensions D1, D2, R1, R2, R3, R4 ofthe connectors 600, 620 are varied in order to provide a desiredarticulation of the connectors 600, 620 and the posterior moduleattached thereto.

FIG. 25A-B illustrate additional embodiments of a connector. FIG. 25Aillustrates a connector 640 having a generally wide, short body 642while FIG. 25B illustrates a connector 650 having a generally narrow,tall body 652. The connectors 640, 650 can be used, for example, inembodiments of a goggle such as that shown above in FIGS. 13-16B, inwhich anterior portions 644, 654 of the connectors 640, 650 are flexiblyor movably coupled to a lens support or anterior module. Similar to theembodiments illustrated in FIGS. 24A-B, the configuration of theconnectors 640, 650 can be selectively modified in order to achieve adesired articulation.

In another embodiment of a connector, FIG. 26 illustrates an expandablecell connector 670. The expandable cell connector 670 can comprise atleast one leaf spring component 672 having anterior and posterior endsthat can be coupled to respective ones of a lens support or anteriormodule 674 and a posterior module 676. The expandable cell connector 670can be formed in a diamond shape and be deformed in response tocompression between the posterior module 676 and the anterior module674.

In general, the expandable cell connector comprises at least a firststrut 673 which is moveably or rigidly connected to the anterior module674, and a second strut 675 which is rigidly or moveably connected tothe posterior module 676. First strut 673 and second strut 675 may beanterior and posterior sections of a single, arcuate leaf spring.Alternatively, first strut 673 and second strut 675 are separated by abend or hinge point 677. In the illustrated embodiment, the hinge point677 comprises a loop of wire, which allows the angle between first strut673 and second strut 675 to be varied through a wide angular rangewithout exceeding the elastic limit of the material. Suitable materialsinclude any of a wide variety of polymers, and also super elastic metalsor spring metals, such as spring steel, Nitinol, Elgiloy and othersknown in the art.

The expandable cell connector illustrated in FIG. 26 includes a thirdstrut and a fourth strut, separated by a second hinge point to define anenclosed cell. The cell functions as a spring or shock absorber betweenthe two points of contact with the anterior and posterior modules. Twoor three or four or five or six or more expandable cell connectors 670may be provided along either the upper or lower portion of the frame.Spring cells in accordance with the present invention may be providedwith four or five or six or more walls, and may comprise a honeycombconfiguration in which the struts are replaced by a thin membrane.

In some embodiments, the leaf spring component 672 can be fabricatedfrom a resilient material, such as a plastic or metal that can beelastically deflected. The leaf spring component 672 can comprise agenerally elongate body. The leaf spring component 672 can be separatelyor monolithically formed with one or more additional leaf springcomponents 672. Thus, the shape and configuration of the expandable cellconnector 670 can vary depending on the number and orientation of theindividual components of the expandable cell connector 670.

For example, the body of the leaf spring component 672 can comprise oneor more curved portions and one or more straight portions. The body ofthe leaf spring component 672 can have the shape of a bent pin or aspring. Further, the leaf spring component 672 can be fabricated in theshape of a loop in order to facilitate distribution of compressiveforces within the body of the leaf spring component 672.

FIG. 27 is a schematic diagram illustrating movement of the connectorsand the respective spacing of the connectors. FIG. 27 illustrates firstand second connectors 680, 682 that can be pivotably coupled to ananterior module (not shown) and rigidly coupled to a posterior module(not shown). The first and second connectors 680, 682 are shown in solidlines in an undeflected position 684 and dashed lines in a deflectedposition 686. The first and second connectors 680, 682 can rotatethrough an angle Δ1, as indicated in FIG. 27.

As illustrated, interior connection points P1, P2 of the first andsecond connectors 680, 682 are spaced apart at a distance L1 when in theundeflected position 684 and at a distance L2 when in the deflectedposition 686. Although the actual length of the posterior moduledisposed between the interior connection points P1, P2 of the first andsecond connectors 680, 682 may be greater than either distance L1, L2,FIG. 27 indicates that the actual length of the posterior moduledisposed between the interior connection points P1, P2 must be at leastequal to the distance L2 in order for the first and second connectors680, 682 to be deflected towards the deflected position 686. In someembodiments, the actual length of the posterior module disposed betweenthe interior connection points P1, P2 can also be greater than thedistance L2 such that the posterior module is not placed in tension inthe deflected position 686.

FIG. 27 also indicates that in some embodiments, the movement of a pairof connectors towards a deflected position may actually separateconnection points of the connectors while causing other connectionpoints of the connectors to converge. For example, the separation ofinner connection points can generally tend to flatten out a centralportion of the posterior module while the convergence of the innerconnection points may tend to increase the curvature of the centralportion of the posterior module.

In some embodiments, the first and second connectors 680, 682 can beconfigured and mounted relative to the anterior module such thatrotation toward the deflected position 686 causes separation of theinterior connection points P1, P2. However, the first and secondconnectors 680, 682 can be configured and mounted relative to theanterior module such that rotation toward the deflected position 686causes convergence of the interior connection points P1, P2. In eitherof such embodiments, the articulation of the posterior module can bemanipulated in order to target a desired range of head sizes for thatembodiment.

Quick Release Lens Goggle Embodiments

Referring now to FIGS. 28-34C, embodiments of an interchangeable lensstructure or quick release lens mechanism. As noted previously, any ofthe features disclosed herein can be individually incorporated intoembodiments of the goggles and eyeglasses and incorporated into goggleand eyeglass embodiments in combination with other features. FIGS.28-34C illustrate embodiments of a goggle wherein the anterior module ofthe goggle has been modified to comprise an interchangeable lensstructure. Embodiments of the anterior module that comprise aninterchangeable lens structure can be paired with embodiments of theconnector(s) and/or posterior module.

Some embodiments of lens engagement systems are provided in Applicants'copending U.S. patent application Ser. No. 12/648,232, filed on Dec. 28,2009, titled Eyeglass with Enhanced Ballistic Resistance and U.S. patentapplication Ser. No. 13/020,747, filed on Feb. 3, 2011, titled Eyewearwith Enhanced Ballistic Resistance, the entireties of both of which areincorporated herein by reference. Further, these teachings are believedto apply for goggle and eyeglass technologies. These applications alsoinclude other features and aspects of eyewear features, including butnot limited to goggle strap technology, the entireties of the relateddisclosures are also incorporated herein by reference.

In some embodiments, the eyewear can comprise a frame or lens supportwith at least one engagement section for supporting and engaging a lens.FIGS. 28-29 illustrate an embodiment of a goggle 700 comprising aposterior module 702 and a lens support or anterior module 704 thatincorporates an engagement section or interchangeable lens structure706. The goggle 700 can also comprise a lens 708 that can be releasablyretained by the interchangeable lens structure 706.

In some embodiments, the interchangeable lens structure 706 can provideat least one interconnection point or engagement section 710 between thelens 708 and the anterior module 704 where the lens 708 is secured tothe anterior module 704. The interchangeable lens structure 706 cancomprise a structure that moves relative to the lens 708. Theinterchangeable lens structure 706 can also comprise one or morestationary structures, which can be used in combination with movablestructures to engage the lens 708 to retain the lens 708 in a mountedposition.

For example, the interchangeable lens structure 706 of the goggle 700can comprise at least one engagement section 710. The engagementsection(s) 710 can comprise at least one retention socket 720 and/or atleast one retention clip 722. Further, the engagement section 710, theretention socket 720, and/or the retention clip 722 can comprise anengagement structure or member such as a depression, recess, receptacle,or socket and/or a protruding portion. In the illustrated embodiment,the retention socket 720 can receive and retain a least a portion of thelens 708 while the retention clip 722 can rotate relative to the lens708 in order to secure the lens 708 in a mounted position on the goggle700. As illustrated in FIG. 29, the retention socket 720 can receive afirst side 726 of the lens 708, and the retention clip 722 can secure asecond side 728 of the lens 708 when the lens 708 is in the mountedposition.

FIG. 30 illustrates a perspective view of the lens 708 according to anembodiment. The lens 708 can comprise the first and second ends 726, 728and a lens periphery 730. In some embodiments, one of the first andsecond ends 726, 728 of the lens 708 can comprise at least one retentionstructure 732. The retention structure 732 can comprise one or moreapertures, recesses, ridges, and/or protrusions formed along arespective end 726, 728 of the lens 708. In the embodiment illustratedin FIGS. 28-32A, the retention structures 732 comprise oblong aperturesformed in the respective ends 726, 728 of the lens 708.

Referring now to FIGS. 31A-32A, the structure of an embodiment of theinterchangeable lens structure 706 and its engagement with the lens 708will be described. FIG. 31A illustrates further features of theretention socket 720 and the retention clip 722. The retention socket720 can be formed such that the first end 726 of the lens 708 can beinserted into the retention socket 720 and at least partiallyconstrained against anterior motion. Thus, the retention socket 720 cancomprise a cavity or space configured to receive at least a portion ofthe lens 708.

In some embodiments, the retention socket 720 can be formed to compriseat least one engagement member 740 that can be configured to engage withthe retention structure 732 of the lens 708. For example, the engagementmember 740 of the retention socket 720 can be positioned on an inner,anterior face of the retention socket 720 such that the engagementmember 740 can engage the retention structure 732 of the lens 708 from aposition anterior to the lens 708. However, the engagement member 740can also be positioned on an inner posterior face of the retentionsocket 720 such that the engagement member 740 can engage the retentionstructure 732 from a position posterior to the lens 708. Moreover, theengagement member 740 can be disposed along an interior lateral side ofthe retention socket 720 such that a side edge of the first end 726 ofthe lens 708 can contact and/or engage with the engagement member 740.

Additionally, the retention clip 722 can be configured to engage withthe second ends 728 of the lens 708 in order to at least partiallyconstrain the lens 708 against anterior motion. For example, theretention clip 722 can comprise an actuating jaw 744 and an engagementmember 746. In some embodiments, the jaw 744 can comprise a retentionstructure configured to engage with a portion of the lens 708. In theembodiment illustrated in FIG. 31A, the jaw 744 is movable or rotatablewith respect to the engagement member 746. Further, the jaw 744 can beconfigured to translate with respect to the anterior module 704 and/orbe removably attachable to the anterior module 704.

The engagement member 746 can be formed along a portion of theengagement section 710 of the anterior module 704. For example, theengagement member 746 can be formed along an anterior face of theanterior module 704, such as to extend from a recess formed in theengagement section 710. In some embodiments, the engagement member 746can comprise at least one protrusion and/or recess configured to engagewith the retention structure 732 of the second end 728 of the lens 708.As discussed further below, when the engagement member 746 of theretention clip 722 is engaged with the retention structure 732 of thelens 708, the jaw 744 can be rotated from a disengaged position to anengaged position to constrain movement of the lens 708 relative to theengagement member 746 of the retention clip 722.

FIG. 31B illustrates a first stage of mounting and securing the lens 708to the anterior module 704 using the interchangeable lens structure 706.As shown, the first end 726 of the lens 708 is inserted into theretention socket 720 such that the engagement member 740 of theretention socket 720 engages with the retention structure 732 of thefirst end 726 of the lens 708. When the first end 726 of the lens 708 isin place, the second end 728 of the lens 708 is moved towards theretention clip 722.

FIG. 31C illustrates the lens 708 in a mounted position relative to theanterior module 704 of the goggle 300. In the mounted position, the lensperiphery 730 can be generally flush or mate with a periphery 760 of theanterior module 704.

FIG. 31D also illustrates the lens 708 in the mounted position relativeto the anterior module 704 prior to actuation of the retention clip 722.As shown, the retention structure 732 of the second end 728 of the lens708 can be aligned with or initially engaged with the engagement member746 of the retention clip 722. In the illustrated embodiment, aprotrusion of the engagement member 746 has been inserted into anaperture formed in the second end 728 of the lens 708.

Subsequent to alignment of the lens 708 with the retention socket 720and the retention clip 722, the jaw 744 of the retention clip 722 can bemoved from the disengaged position (shown in FIG. 31D) to an engagedposition, as shown in FIG. 31E. In the illustrated embodiment, the jaw744 is rotated to the engaged position, thus constraining the lens 708from a degree of movement.

FIGS. 32-32B are cross-sectional top views of the anterior module 704 ofthe goggle 700 shown in FIGS. 28-29, taken along the lines 32-32 of FIG.29. FIG. 32A illustrates the interconnection of the retention socket 720with the first end 726 of the lens 708. The engagement member 740 of theretention socket 720 can be positioned into engagement with theretention structure 732 of the first end 726 of the lens 708. As shown,the aperture of the retention structure 732 can receive the protrusionof the engagement member 740 in such a manner that the first end 726 ishooked or engaged within the retention socket 720.

For example, the retention structure 732 can be configured to allow thelens 708 to engage with the retention socket 720 at a first rotationalposition and then to allow the lens 708 to be rotated about a generallyhorizontal axis until being positioned in a mounted position withrespect to the anterior module 704. Once in the mounted position, thefirst end 726 of the lens 708 can be engaged with the retention socket720 to prevent side-to-side or anterior-posterior motion of the lens708. In this manner, the engagement member 740 can resist an anteriorforce exerted against the lens 708 and thereby prevent substantialmovement of the lens 708 relative to the retention socket 720.

FIG. 32B illustrates the interconnection of the retention clip 722 withthe second end 728 of the lens 708. The engagement member 746 of theretention clip 722 can be aligned or engaged with the retentionstructure 732 of the second end 728 of the lens 708. As shown, theaperture of the retention structure 732 can receive the protrusion ofthe engagement member 746.

The jaw 744 can be rotated, moved, slid, shifted, or translated in orderto secure the second end 728 of the lens 708 to the anterior module 704.In some embodiments, the jaw 744 can pivot about a generally horizontallateral axis and engage at least portion of the lens 708 and at least aportion of the anterior module 704. For example, the jaw 744 can beformed with a U-shaped body that can engage or enclose at least aportion of the second end 728 of the lens 708 and at least a portion ofthe anterior module 704. The retention structure 732 and the engagementmember 746 can be enclosed between anterior and posterior portions ofthe jaw 744. Further, the jaw 744 can engage anterior and posteriorportions of the anterior module 704 and at least a portion of the lens708.

Thus, the jaw 744 can be rotated to the engaged position such thatrelative movement between the retention structure 732 and engagementmember 746 is prevented. More specifically, with the jaw 744 in theengaged position, the protrusion of the engagement member 746 is unableto exit the aperture of the retention structure 732. Additionally, dueto the engagement of the second end 728 of the lens 708 with theanterior module 704, movement or disengagement the first end 726 of thelens 708 with the anterior module 704 will also be prevented. In thismanner, the first end 726 and the second end 728 of the lens 708 can besecured relative to the anterior module 704.

In some embodiments, the jaw 744 of the retention clip 722 can besecured in place when moved to the engaged position. For example, therotatable coupling of the jaw 744 can comprise a recess and protrusionmechanism in which one of the recess and the protrusion rotate relativeto the other until the jaw 744 reaches the engaged position, at whichtime the recess and the protrusion can engage with each other in themechanism in order to limit or prevent rotational movement of the jaw744 absent the presence of a significant rotational force. Accordingly,such a mechanism can prevent accidental and unintentional rotation andsubsequent disengagement of the jaw 744. Other such mechanisms,including clips, pins, latches, etc., can be incorporated into theretention clip 722 in order to fix the jaw 744 once in the engagedposition.

In accordance with another embodiment, FIGS. 33-34C illustrates a goggle800 having a posterior module 802, and anterior module 804, and aninterchangeable lens structure 806 that can accommodate the removal andreplacement of a lens 808. Similar to the embodiment of the goggle 700,the interchangeable lens structure 806 of the goggle 800 can comprisemechanisms that facilitate the interconnection of the anterior module804 with the lens 808. However, in contrast with the goggle 700, theinterchangeable lens structure 806 of the goggle 800 can comprise a pairof retention clips 820.

The retention clips 820 can each comprise an engagement member 830, ajaw 832 and a latch 834. The jaw 832 and a latch 834 can be rotatablymounted to the anterior module 804. However, in some embodiments, thejaw 832 and/or the latch 834 can be configured to translate with respectto the anterior module 804 and/or be subsequently attached to theanterior module 804 after the lens 808 is positioned at a mountedposition with respect to the anterior module 804.

Similar to the embodiment of the goggle 700, the lens 808 can comprisethe first and second ends 840, 842 that each comprise a respectiveengagement structure 844. The engagement structure 844 can engage ormate with the engagement member 830 of the retention clip 820. Theengagement structure 844 can comprise an aperture, and the engagementmember 830 can comprise a protrusion. The jaw 832, similar to the jaw744, can resist relative motion between the engagement structure 844 andthe engagement member 830.

The latch 834 can be configured to rotate from an unsecured position toa secured position in which the latch 834 can engage with the jaw 832 inorder to prevent accidental or unintentional rotation of the jaw 832.These structures and features of the lens 808 and the retention clip 820can be modified as discussed above with respect to the lens 708 and theretention clip 722 of the goggle 700; therefore, the discussion of suchmodifications and features is incorporated herein and will not berepeated for the sake of brevity.

Referring now to FIGS. 34A-C, the mounting an engagement of the lens 808with the retention clip 820 of the goggle 800 will now be described. Asshown in FIG. 34A, the lens 808 is initially moved toward the anteriormodule 804 of the goggle 800 with the retention clip 820 in a disengagedposition. The first end 840 of the lens 808 is positioned such that theengagement structure 844 is mated with the engagement member 830 of theretention clip 820, as shown in FIG. 34B.

Once the lens 808 is in a mounted position as shown in FIG. 34B, the jaw832 of the retention clip 820 can be moved toward an engaged position,as shown in FIG. 34C. Additionally, the latch 834 of the retention clip820 can be moved towards the secured position in order to preventaccidental or unintentional rotation of the jaw 832 from the engagedposition.

In some embodiments, the latch 834 can mechanically engage with the jaw832 such that accidental or unintentional rotation of the jaw 832 isprevented. For example, the latch 834 can comprise one or moreprotrusions and/or recesses that can engage with one or more respectiverecesses and/or protrusions of the jaw 832. Further, the latch 834 canbe biased toward the secured position by means of a spring or the likesuch that a substantial rotational force must be exerted up on the jaw832 in order to move the jaw 832 from the engaged position towards adisengaged position. In such embodiments, the latch 834 can facilitatethe secure engagement of the lens 808 with the anterior module 804.

As mentioned herein, the quick release lens mechanism can be used incombination with an eyeglass as well as a goggle. The structure of suchembodiments comprises the quick release lens mechanism described aboveand used in combination with an eyeglass frame and at least one eyeglasslens. The eyeglass can comprise dual lenses or a unitary lens. Further,the eyeglass frame can comprise full or partial orbitals. Accordingly,the above discussion will not be repeated here for brevity, but isincorporated by reference hereto for use in eyeglass embodiments.

Rigid Frame Goggle Embodiments

FIG. 35 illustrates a top view of a lens support or anterior module 900of a goggle. In some embodiments, the anterior module 900 can be formedas a substantially rigid structure. As a substantially rigid structure,the anterior module 900 can support a lens 902 in a manner that preventsthe transfer of bending forces or stresses to the lens 902 to preventany significant deflection of the lens 902.

The term “substantially rigid structure” can encompass embodiments inwhich the entire anterior module 900 has a constant flexural strengthalong the width thereof. The term “substantially rigid structure” canalso encompass embodiments in which the anterior module 900 has avariable flexural strength along the length thereof, providing desiredrigidity at specific portions thereof.

For example, “substantially rigid structure” can encompass an embodimentin which side sections of the anterior module provide a degree offlexibility while a central section of the anterior module is generallyinflexible. In some embodiments, the central section of the anteriormodule can be generally inflexible along a width that can be greaterthan or equal to about ⅓ of the entire width of the anterior moduleand/or less than or equal to about ⅘ of the entire width of the anteriormodule. Further, the central section of the anterior module can begenerally inflexible along a width that can be greater than or equal toabout ½ of the entire width of the anterior module and/or less than orequal to about ⅔ of the entire width of the anterior module.

Additionally, the term “substantially rigid structure” can alsoencompass embodiments in which the anterior module is formed from arigid material, such as a metal or hard plastic, which is generallyinflexible under normal flexural stresses of use and handling. However,the term “substantially rigid structure” can also encompass embodimentsin which the anterior module is formed from a resilient or elasticmaterial that allows minimal bending, but returns to a default ororiginal configuration when worn.

In some embodiments, the anterior module 900 can have a configuration orcontour that matches the configuration or contour of the lens 902 in itsas-molded configuration. Thus, the lens 902 can be rigidly supported bythe anterior module 900 such that the lens 902 does not deflect from itsas-molded configuration, thereby preserving the optical quality of thelens 902.

FIG. 35 illustrates that the anterior module 900 can comprise aninterchangeable lens structure 904 disposed at opposing ends of theanterior module 900. In some embodiments, the interchangeable lensstructure 904 can be disposed at top and/or bottom portions of theanterior module 900 or along other places thereof. Accordingly, the lens902 can be replaced and securely retained by the anterior module 900 byvirtue of the interchangeable lens structure 904.

Further Embodiments

FIGS. 36-51 illustrate an embodiment of eyewear that can incorporatevarious features and components discussed herein. The embodiment of theeyewear shown in these figures is illustrated as a goggle, but otherforms of eyewear, such as eyeglasses, can also incorporate or omit thefeatures discussed with respect to this embodiment, as well asincorporate or omit other features of other embodiments discussedherein.

Referring now to FIGS. 36-39, an embodiment of a goggle 1000 is providedthat can comprise various features and advantages of the aforementionedembodiments, as well as other features discussed further below. Forexample, the goggle 1000 can comprise an engagement mechanism 1002, anisostatic posterior frame component 1004, a lens or lens assembly 1006,an anti-fog Venturi airflow system 1008, a rigid frame 1010, and amodular frame 1012. These features can be interchangeably incorporatedinto various embodiments, and the embodiment shown in FIGS. 36-51 isprovided for illustrative purposes only.

FIG. 37 is a side view of the goggle 1000 illustrating the engagementmechanism 1002. The engagement mechanism 1002 can comprise a latchmember or clip 1020. The latch member 1020 can be movably coupled to ananterior module or frame 1022 of the goggle 1000 in order to facilitateengagement between the goggle 1000 and the lens assembly 1006. The latchmember 1020 can move between a closed position 1024 and an open position1026 (shown in FIG. 38). In some embodiments, the latch member 1020 canbe pivotably coupled to the frame 1022. However, the latch member 1020can also be slidably coupled to the frame 1022.

In some embodiments, the engagement mechanism 1002 can also comprise abiasing component. The biasing component can be configured to urge thelatch member 1020 toward the closed position 1024 to secure the lensassembly 1006 relative to the goggle 1000. Further, the biasingcomponent can operate as a bistable mechanism to urge the latch member1020 toward either the closed position 1024 or the open position 1026.

As shown in FIGS. 36-40C, the biasing component can comprise adeflectable component, such as a link 1030. For example, the biasingcomponent can deflect from an undeflected or at-rest position to adeflected or stressed position. When moved, compressed, or deflected tothe stressed or deflected position by a given force, the biasingcomponent can store potential energy that can be exerted to move theengagement mechanism 1002 toward the closed position 1024 or the openposition 1026. In the embodiment illustrated in FIGS. 36-40C, thebiasing component is shown as the link 1030, which is in the form of anarcuate elongate body. The biasing component can comprise variousstructures, such as a spring, a band, link, or other structure that canstore potential energy during movement, compression, or deflectionthereof.

FIGS. 40A-40C illustrate that an embodiment of the link 1030 cancomprise the first and second ends 1040, 1042 that can be interconnectedwith a portion of the goggles 1000 and a portion of the latch member1020, respectively. The link 1030 can comprise apertures disposed at thefirst and second ends 1040, 1042 thereof that enable the link 1030 to beinterconnected in use.

In the illustrated embodiment, the link 1030 is configured as amonolithic structure. The link 1030 can comprise a deflectable core orbody 1044 to enable the link 1030 to provide a biasing force to thelatch member 1020. For example, the link 1030 can provide a virtualpivot or living hinge for the latch member 1020. The body 1044 candefine a variable profile in order to provide a desired degree ofresistance to deflection. For example, the body 1044 can defineflattened central section to facilitate bending of the link 1030 andprovide a desired degree of resistance to deflection. In someembodiments, central section of the body 1044 can be flattened in adirection generally parallel to a bending axis. Further, the endportions of the body 1044 can be flattened in a direction generallytransverse or oblique relative to the bending axis in order to reduceand/or prevent bending at the end portions. The variable profile ortapered dimensions of the link 1030 can allow the body 1044 of the link1030 to be manufactured from a single material while providing desiredstrength characteristics. However, in some embodiments, the link 1030can be configured as a monolithic unit or structure having a generallyconstant cross-sectional profile along the body 1044 or thereof. In suchembodiments, the material forming the link 1030 can be selected toprovide desired strength characteristics.

However, in some embodiments, the link 1030 can also be formed from aplurality of materials or separate parts. For example, the first andsecond ends 1040, 1042 of the link 1030 can be formed from a generallyrigid material while the body 1044 of the link 1030 comprises adifferent material that is generally deflectable in order to allow thelink 1030 to provide a desired biasing function.

The link 1030 can be formed from a variety of materials, includingplastics, metals, composites, and the like. In some embodiments, thelink 1030 can be formed using an injection molding process. Otherprocesses such as overmolding, casting, and the like can be used to formthe link 1030, whether as a monolithic structure or an assembly andwhether formed from a single material or multiple materials.

Referring again to FIGS. 37-39, the link 1030 can be coupled to theframe 1022 and the latch member 1020 at first and second connectionpoints 1050, 1052. The first connection point 1050 can be located alongthe frame 1022. For example, the first connection point 1050 can beconfigured as an aperture extending through the frame 1022. The secondconnection point 1052 can be located along the latch member 1020. Forexample, the second connection point 1052 can comprise an apertureextending through an intermediate portion of the latch member 1020. Thegoggle 1000 can be configured such that the spacing of the firstconnection point 1050 from the second connection point 1052 varies whenthe latch member 1020 is pivoted between the closed position 1024, anintermediate open position (not shown), and the open position 1026.

For example, a pivot connection point 1060 between the latch member 1020and the frame 1022 can be positioned relative to the first and secondconnection points 1050, 1052 so as to cause separation of the first andsecond connection points 1050, 1052 as the latch member 1020 pivotsrelative to the frame 1022. For example, the first and second connectionpoints 1050, 1052 can define a linear path and a first direct, lineardistance therebetween when the latch member 1020 is in the closedposition 1024. As shown in FIGS. 37-38, the pivot connection point 1060can be offset or spaced apart from the linear path of the first andsecond connection points 1050, 1052 when the latch member 1020 is in theclosed position 1024. The motion of the second connection point 1052occurs along an arcuate path defined by the distance (or radius) betweenthe pivot connection point 1060 and the second connection point 1052.Further, during movement of the latch member 1020, although the distancebetween the first connection point 1050 and the pivot connection point1060 does not change, the direct, linear distance between the first andsecond connection points 1050, 1052 will increase as the secondconnection point 1052 moves along the arcuate path as the latch member1020 pivots.

In some embodiments, the increase in the direct, linear distance betweenthe first and second connection points 1050, 1052 can result in astretching or deflection of the link 1030 as the first and secondconnection points 1050, 1052 move apart. The link 1030 can be configuredto resist the stretching or deflection and tend to urge the latch memberto the closed and/or open position 1024, 1026 as the link 1030 seeks toreturn to a non-stressed position. Accordingly, the link 1030 can tendto exert a biasing force that urges the latch member 1020 toward theclosed and/or open position 1024, 1026.

FIGS. 37 and 38 illustrate the offset positioning of the pivotconnection point 1060 from the linear path defined by the first andsecond connection points 1050, 1052. An intermediate position (notshown) between the open and closed positions 1024, 1026 could be reachedwhen the pivot connection point 1060 is linearly aligned with the firstand second connection points 1050, 1052. In such an intermediateposition, the distance between the first and second connection points1050, 1052 would be maximized, also resulting in a maximum potentialenergy in the link 1030.

In some embodiments, the spacing or linear distance of the first andsecond connection points 1050, 1052 can be generally equal to the lineardistance between the apertures of the first and second ends 1040, 1042of the link 1030 when the link 1030 is in the undeflected or at-restposition (i.e., when the latch member 1020 is in the closed position1024). However, in some embodiments, the spacing or linear distance ofthe first and second connection points 1050, 1052 can be generallygreater than the linear distance between the apertures of the first andsecond ends 1040, 1042 of the link 1030 when the link 1030 is in theundeflected or at-rest position (i.e., when the latch member 1020 is inthe closed position 1024). Thus, the link 1030 can be in a generallystressed or deflected state when the latch member 1020 is in the closedor open positions 1024, 1026. In such embodiments, a closing or openingforce can be continually applied by the link 1030 in order to maintainthe latch member 1020 securely in the open or closed position 1024,1026.

As noted above with respect to FIGS. 28-34C, the goggle 1000 can alsocomprise an interchangeable lens structure in which the lens or lensassembly 1006 comprises at least one retention structure 1070 and theframe 1022 comprises at least one corresponding engagement member 1072.Further, the opposite ends of the lens or lens assembly 1006 and theframe 1022 can be configured to include a retention structure and/or anengagement member to facilitate interconnection of the opposite end ofthe lens assembly 1006 with the opposite end of the frame 1022.

As similarly discussed above, FIGS. 37-39 illustrate that when theopposite end of the lens assembly 1006 is properly seated against theframe 1022, the retention structure 1070 can be fitted over theengagement member 1072, and the latch member 1020 can be moved down intothe closed position 1024 to engage and secure the lens assembly 1006relative to the frame 1022. The above discussion regarding thesefeatures is incorporated herein by reference and the discussion will notbe repeated here.

Referring now to FIGS. 41A-B, an embodiment of the latch member 1020 isillustrated. The latch member 1020 can comprise first and secondcoupling points 1080, 1082. The latch member 1020 can be coupled to theframe 1022 at the first coupling point 1080. Additionally, the latchmember 1020 can be coupled with the biasing component or link 1030 atthe second coupling point 1082. The latch member 1020 can also comprisea body 1090 having an actuating portion 1092 that can be configured toallow the wearer to grip and adjust the position of the latch member1020 relative to the frame 1022.

In some embodiments, the body 1090 of the latch member 1020 can alsocomprise a first flange 1094. The first flange 1094 can overlap the lensassembly 1006 and the engagement member 1072 of the frame 1022 when thelatch member 1020 is positioned in the closed position 1024. The body1090 of the latch member 1020 can also comprise a second flange 1096.The second flange 1096 can be configured to engage a portion of theframe 1022 when the latch member 1020 is in the closed position 1024.Accordingly, the first and second flanges 1094, 1096 can be used toreceive at least a portion of the lens assembly 1006 and at least aportion of the frame 1022 by capturing or sandwiching the lens assembly1006 and the frame 1022 to secure the relative positioning of the lensassembly 1006 and the frame 1022.

Additionally, the body 1090 of the latch member 1020 can comprise a stopmechanism 1098. As shown in FIGS. 37-38, the stop mechanism 1098 caninteract with a ledge 1100 formed on the frame 1022 to restrictrotational movement of the latch member 1020. For example, as the latchmember 1020 rotates upwardly to the open position 1026, the stopmechanism 1098 can contact the ledge 1100 to limit further rotation ofthe latch member 1020 relative to the frame 1022. Advantageously, insome embodiments of the latch member 1020, the position of the stopmechanism 1098 can be varied in order to adjust the rotationalorientation of the open position 1026.

In order to achieve a desired articulation and closing or opening forceof the latch member 1020, the spacing and configuration of thecomponents of the engagement mechanism 1002 can be varied. Further, thelatch member 1020 and/or the frame 1022 can comprise a locking structureor component 1099. The locking structure 1099 can interact with theframe 1022 to provide an additional securing force between the latchmember 1020 and the frame 1022 when the latch member 1020 is in theclosed position 1024. For example, the locking structure 1099 can beformed as a protrusion along an edge or surface of the latch member1020. Further, an engaging portion 1101 of the frame 1022, such as aledge, protrusion, or recess, can engage with the locking structure 1099when the latch member 1020 is in the closed position 1024 to secure thelatch member 1020 in the closed position 1024.

Although some embodiments can use a single lens, some embodiments canuse a lens assembly comprising two or more components and/or lenses. Forexample, FIGS. 42-43 illustrate an embodiment of a lens assembly 1006that can be used in some embodiments. The lens assembly 1006 cancomprise an outer lens 1050 and an inner lens 1052. In some embodiments,the outer and inner lenses 1050, 1052 can be spaced apart by a gasketcomponent 1054 to create a gap 1060 between the lenses 1050, 1052. Thegasket 1054 can extend about a periphery of the lenses 1050, 1052.Further, the outer lens 1050 can be configured to comprise retentionstructures 1070, 1071 by which the lens assembly 1006 can be coupled tothe goggle. The retention structures 1070, 1071 can be disposed onopposing lateral ends of the lens assembly 1006.

The gasket 1054 can comprise one or more discontinuities to permitairflow into the gap 1060. However, the gasket 1054 can also extendcontinuously or unbroken about the periphery of the lenses 1050, 1052such that the gap 1060 forms a sealed or enclosed pocket of air. Thegasket 1054 can comprise a breathable or open cell material that allowsair passage through the gasket 1054. Further, the gasket 1054 cancomprise a non-breathable or closed cell material that tends to preventair passage therethrough. In some embodiments, the gasket 1054 cancomprise breathable and non-breathable portions.

The gap 1060 created between the lenses can facilitate ventilation,anti-fogging, and/or create an insulative effect by trapping a pocket ofair between the outer and inner lenses 1050, 1052. For example, anenclosed pocket of air can maintain an intermediate temperature which,in some conditions, can bridge a temperature differential between theair temperature adjacent the wearer's face and the air temperatureoutside the goggle.

During use, the inner lens 1052 can be compressed against the goggleframe when the lens assembly 1006 is coupled to the goggle. In someembodiments, the inner lens 1052 can form a seal against the goggleframe to maintain a desired air flow or ventilation through the frame,as discussed below.

Referring now to FIGS. 44-45, the goggle 1000 can comprise an anti-fogVenturi airflow system 1008. The airflow system 1008 can comprise one ormore ports 1102 disposed along a periphery of the goggle 1000. Theport(s) 1102 can be disposed along a central section of the goggle 1000along an upper portion thereof. The port(s) 1102 can comprise ananterior end 1104 that is open toward the anterior direction of thegoggle 1000 and a posterior end 1106 that is open toward a posteriorsection of the goggle 1000.

In use, air can flow into the anterior end 1104 of the port 1102 and outthrough the posterior end 1106. The air flow can exhibit the velocityand pressure qualities produced as a result of the Venturi effect. Apressure differential can exist between the outer portions of the goggleand the port(s) 1102. Air can be drawn into the port(s) 1102 and passover a suspension or interconnection portion 1110 of the goggle 1000. Insome embodiments, the interconnection portion 1110 can comprise a foamor air permeable membrane (not shown) that covers the suspension orinterconnection portion 1110 to prevent ingress of particulate into theinterior of the goggle 1000. The air passing through the port(s) 1102can pass over the membrane and provide enhanced ventilation anddefogging for the goggle 1000. In some embodiments, the Venturi effectcan contribute to a negative pressure being created in the interior ofthe goggle to induce airflow therethrough and reduce fogging. Suchembodiments can thus provide improved ventilation and defogging comparedto prior art goggles that do not comprise an airflow system.

In embodiments of the goggle having an isostatic posterior framecomponent 1004, the goggle 1000 can further comprise means for allowingfurther adjustability of the faceplate to conform to larger or smallerhead sizes. For example, FIG. 44 illustrates that the posterior framecomponent 1004 can comprise a posterior faceplate 1120 and an isostaticmechanism 1122. The posterior faceplate 1120 can comprise a generallyflat surface that extends about the periphery of the faceplate 1120 andcan further comprise at least one flexible portion 1130. The flexibleportion 1130 can give the posterior faceplate 1120 additional widthadaptability to adjust to a given size and shape of a wearer's face.Thus, the generally flat surfaces of the posterior faceplate 1120position on either side of the flexible portion 1130 can be spread ordisplaced from each other in order to accommodate a given head shape.For example, the flexible portion 1130 can allow opposing sides of thefaceplate 1120 to be stretched apart from each other in an additionalamount that allows the faceplate 1120 to accommodate larger head sizes.The additional amount of stretching or displacement is determined by thegeometry and length of the flexible portion 1130.

For example, the flexible portion 1130 can be formed as a recessed orcurved portion along the faceplate 1120. The flexible portion 1130 candeviate from the curvature on either side of the faceplate 1120. As thefaceplate 1120 is flattened to accommodate a wide head size, theflexible portion 1130 can also flatten to allow increased coverage andadjustability of the faceplate 1120. Further, for smaller head sizes,the flexible portion 1130 can collapse into itself to allow thefaceplate 1120 to be adjusted to tighter dimensions. Accordingly, theshape of the flexible portion 1130 can allow the faceplate 1120 toadjust to a variety of head shapes and sizes more so than a faceplatewithout a flexible portion.

Further, in some embodiments, the shape of the flexible portion 1130 canalso be used to achieve a desired air flow into the interior of thegoggle 1000, as desired. One or more of the flexible portions 1130 canbe used for facilitating air flow and/or adjustability of the faceplate1120.

The isostatic mechanism 1122 can comprise a plurality of connectors 1124that extend from an anterior portion 1126 of the posterior framecomponent 1004. The connectors 1124 can be formed from a compressible orflexible material. For example, the connectors 1124 can be deflectedsuch that the faceplate 1120 can be deformed to accommodate a given headshape. The connectors 1124 can be positioned generally equidistant froma centerline of the goggle 1000. As illustrated, the connectors 1124 canbe positioned at the upper rim or edge of the goggle 1000; however, theconnectors can also be positioned along a lower rim or edge of thegoggle 1000.

Additionally, the isostatic mechanism 1122 can be integrally ormonolithically formed with the faceplate 1120 such that these componentsform a single-piece unit. For example, in some embodiments, a desirablyflexible material can be used to fabricate both be isostatic mechanism1122 and the faceplate 1120. This can advantageously reduce themanufacturing time and cost, as well as simplify the assembly process.Accordingly, the goggle 1000 can be easily modularly formed using aneconomy of individual components that are interchangeable according towearer preferences, as discussed further herein.

Embodiments of the goggle can also be formed modularly withwearer-interchangeable components that can be interconnected and securedtogether by using a wearer-actuatable fastener or fastening mechanism.In some embodiments, the wearer-actuatable fastening mechanism can bedefined as a fastener or fastening mechanism that can be manuallyactuated between engaged and disengaged states by the wearer.Wearer-actuatable fasteners or fastening mechanisms may be actuatedwithout requiring the use of specialized tools; however, it iscontemplated that basic tools, such as a screwdriver, may be used tofacilitate actuation. In some embodiments, a wearer-actuatable fasteneror fastening mechanism can be actuated by hand, without tools. Further,some embodiments of the goggle can be modularly interchangeable andsecured together without permanent or single-use fasteners, such asadhesives and some mechanical fasteners, including screws, bolts,adhesives, and the like.

For example, the embodiment of FIGS. 44-51 illustrates that the goggle1000 can comprise first and second outriggers 1200, 1202. The outriggers1200, 1202 can be removably coupled to the goggle 1000 and facilitateinterconnection of the components of the goggle 1000 with each other. Inthe illustrated embodiment, the anterior module or frame portion 1022 ofthe goggle can be fastened or coupled to a posterior module or frameportion 1212 using the outriggers 1200, 1202. As discussed furtherbelow, the coupling formed by the outriggers 1200, 1202 with the goggle1000 can be achieved by the wearer by manipulating the components byhand. Thus, the components of the goggle 1000 can be interchanged by thewearer without requiring the use of specialized tools, single-usefasteners or permanent fasteners.

In some embodiments, the outriggers can function as the primary means ofcoupling or attaching the anterior and posterior modules, such asbetween a lens support, an isostatic mechanism, and/or a faceplate.However, in some embodiments, a secondary means of coupling or attachingcan be employed. A secondary means of coupling or attaching can comprisea snap-fit member, hook and loop member, and/or other types ofinterference fit or frictional engagement members.

For example, as shown in FIGS. 46-47, the posterior frame component 1004can comprise on or more fastening members 1140 configured to engage witha corresponding fastening member 1142 of the frame 1010. The fasteningmembers 1140, 1142 can comprise hooks and loops that are formed on therespective ones of the posterior frame component 1004 and the frame1010. The arrows in FIG. 47 illustrate the general mating arrangement ofthe fastening members 1140, 1142. These components can be reversed insome embodiments, such that the posterior frame component 1004 comprisesone or more protrusions or hooks that can mate with one or moreapertures or loops formed on the frame 1010. Further, other structurescan be used, including the snap-fit members, protrusions, slots,channels, apertures, plugs, loops, whether deformable, deflectable,compressible, incompressible, or rigid. Such structures can be formedmonolithically with the respective part such that the structures and thepart form a single, continuous part. However, the structures can also beseparately attached to the respective part. As illustrated in FIG. 46,in some embodiments, the fastening members 1140 can be formedmonolithically with the posterior frame component 1004. This canadvantageously reduce costs and increase the facility of coupling theposterior frame component 1004 with the frame 1010.

These secondary connectors can be used in combination with theoutriggers to couple the anterior and posterior modules together.Further, these secondary connectors can be disposed on portions of theanterior and posterior modules that are generally abutting when theanterior and posterior modules are positioned or coupled together as anassembly. In particular, these secondary connectors can be used as aninitial coupling mechanism to hold the anterior and posterior modulestogether as an assembly while the outriggers are attached or detachedfrom the assembly. Thus, the overall assembly, including the outriggersand other components discussed herein, can enable a wearer to quicklymanipulate an interchange any given component of the assembly.

Referring to FIGS. 48A-B, the outrigger 1200 can comprise fasteningportions 1220, 1222. The fastening portions 1220, 1222 can be configuredto engage with and secure the at least the anterior and posterior frameportions 1022, 1212 together. For example, at least one of the anteriorand posterior frame portions 1022, 1212 can comprise one or morecoupling regions where the fastening portions 1220, 1222 can engage withthe anterior and posterior frame portions 1022, 1212. As shown in FIGS.49-50, the goggle 1000 can comprise upper and lower coupling regions1224, 1226 that can act as designated areas along the anterior andposterior frame portions 1022, 1212 whereat the fastening portions 1220,1222 can be coupled. In some embodiments, the coupling regions 1224,1226 can comprise at least one structure, such as a recess, protrusion,slot, groove, aperture, and/or passage that can be used to engage withthe fastening portions 1220, 1222 of the outrigger 1200. In theillustrated embodiment, the coupling regions 1224, 1226 can comprise arecess formed in the anterior frame portion 1022. In addition, someembodiments can be configured such that other components such as thelens can be secured or engaged by the fastening portions 1220, 1222.

Further, in some embodiments, the fastening portions 1220, 1222 of theoutrigger 1200 can comprise recessed portions 1230, 1232 formed adjacentto sidewalls 1234, 1236. The recessed portions 1230, 1232 and thesidewalls 1234, 1236 can be configured to receive and secure portions ofthe anterior and posterior frame portions 1022, 1212 together. As shownin FIG. 51, the anterior and posterior frame portions 1022, 1212 can becoupled together with portions thereof being received into the recessedportions 1230, 1232 of the fastening portions 1220, 1222. The sidewalls1234, 1236 of the fastening portions 1220, 1222 of the outrigger 1200can be positioned against the posterior frame portions 1212 while acorresponding wall or body of the outrigger 1200 can be positionedagainst the anterior frame portion 1022.

The fastening portions 1220, 1222 can be clamped or snapped onto theanterior and posterior frame portions 1022, 1212 to secure theengagement between the outrigger 1200 and the frame. Thus, in someembodiments, the fastening portions 1220, 1222 can comprise protrusionsor recesses that snap against corresponding recesses or protrusions ofthe anterior and posterior frame portions 1022, 1212. Further, thefastening portions 1220, 1222 can fit tightly over the anterior andposterior frame portions 1022, 1212 to secure them together.

FIGS. 49-51 illustrate positions of the outrigger 1200 as it is beingmoved into engagement with the goggle. The initial placement of theoutrigger 1200 relative to the frame can be facilitated using a pin onthe outrigger 1200. For example, as shown in FIGS. 48B-49, the outrigger1200 can comprise an engagement pin 1240 that extends from a body of theoutrigger 1200. The pin 1240 can be configured to engage with one orboth of the anterior and posterior frame portions 1022, 1212 and providea rotational engagement between the outrigger 1200 and the frame. Thepin 1240 can also fix the position of the outrigger 1200 relative to theanterior and posterior frame portions 1022, 1212 when the outrigger 1200is in a final assembled position, as discussed below.

During assembly, the pin 1240 of the outrigger 1200 can be inserted anaperture 1242 of the link 1030 of the goggle 1000 and into an aperture1244 of the anterior frame portion 1022. The top view of FIG. 49illustrates an alignment axis 1250 along which the pin 1240 must pass tobe aligned with the apertures 1242, 1244. After the pin 1240 has beenpassed through the apertures 1242, 1244, the outrigger 1200 can berotated toward an assembled position (shown in FIG. 51) until thefastening portions 1220, 1222 snap into engagement with the couplingregions 1224, 1226 formed in the anterior and posterior frame portions1022, 1212. The succession of the rotational motion 1252 is illustratedin FIGS. 50-51.

Once in the assembled position as shown in FIG. 51, the outrigger 1200can engage and clamp both the anterior and posterior frame portions1022, 1212 together in a secure arrangement. The outriggers can thusinterconnect the components or modules of the goggle together withoutrequiring the use of specialized tools, single-use fasteners orpermanent fasteners. This superior interchangeability allows the wearerto customize and replace components or modules as desired. For example,the wearer can replace the posterior frame portion 1212 depending on adesired activity or comfort level. Similarly, the anterior frame portion1022 can also be replaced as desired.

The features and structures of some embodiments, such as thesubstantially rigid anterior module 900, can be incorporated into anyvariety of goggle embodiments. For example, a substantially rigidanterior module can be used in combination with an isostatic faceplatemechanism. Further, a substantially rigid anterior module can be used incombination with an interchangeable lens structure.

FIGS. 52-58 illustrate yet another embodiment of eyewear that canincorporate features and aspects, in whole or part, of embodiments andstructures discussed above. The embodiment illustrates another quickrelease lens mechanism that can be used with a goggle as well as aneyeglass. Although the illustrated embodiment shows an eyeglass, thequick release lens mechanism can also be used with a goggle.

FIG. 52 is a perspective view of an eyeglass 1500, according to anembodiment. The eyeglass 1500 can comprise a unique quick release lensmechanism having an active restraint 1502 and a passive restraint 1504that can serve to secure a lens 1506 relative to the eyeglass 1500. Theeyeglass 1500 can also comprise a frame 1508 configured to support thelens 1506 in the field of view of the wearer, as discussed herein.

The lens engagement mechanism can operate much like the engagementmechanism described above with respect to FIGS. 31A-32B. The text andfigures referenced above will not be repeated here, but are incorporatedby reference and are considered to be alternative structures that can beused with other types of eyewear, such as the eyeglasses 1500 shown inFIGS. 52-58.

Referring to FIGS. 52-53, the passive restraint 1504 can comprise anengagement socket 1510 configured to engage with a correspondingretention structure 1512 of the lens 1506. The retention socket 1510 canbe formed to comprise an engagement member 1520, such as a protrusion,slot, and/or recess that can engage with a corresponding recess, slot,and/or protrusion formed as the retention structure 1512 of the lens1506. In the illustrated embodiment, the engagement member 1520 of theretention socket 1510 comprises a protrusion that is received into aslot (retention structure 1512) formed along a first lateral end 1522 ofthe lens 1506 when the first lateral end 1522 of the lens is insertedinto the retention socket 1510.

In some embodiments, the engagement member 1520 of the retention socket1510 can be positioned on an inner, anterior face of the retentionsocket 1510 such that the engagement member 1520 can engage a retentionstructure (such as an aperture) formed in the lens 1506 from a positionanterior to the lens 1506. However, the engagement member 1520 can alsobe positioned on an inner posterior face of the retention socket 1510such that the engagement member 1520 can engage a retention structure(such as an aperture) formed in the lens 1506 from a position posteriorto the lens 1506.

Additionally, the active restraint 1502 can be configured to engage witha second lateral end 1528 of the lens 1506 in order to at leastpartially constrain the lens 1506 against anterior motion. For example,the active restraint 1502 can comprise a gate 1530. The gate 1530 can bemoved between an engaged position and a disengaged position in order toallow the lens 1506 to be retained or released relative to the frame1508 of the eyeglass 1500. In some embodiments, the gate 1530 can pivotrelative to the frame 1508. In other embodiments, the gate 1530 canslide or translate relative to the frame 1508. The gate 1530 can beattached to the frame 1508 and maintained connected with the frame 1508while in the engaged or disengaged positions. However, the gate 1530 canalso be detachable from the frame 1508 and separable therefrom.

In some embodiments, the active restraint 1502 can further comprise alatch member 1532. As illustrated in FIGS. 55-57, the latch member 1532can be moved between a locked position and an unlocked position. FIG. 55illustrates the gate 1530 in a disengaged or open position and the latchmember 1532 in the unlocked or open position. FIG. 56 illustrates thegate 1530 in an engaging or closed position and the latch member 1532 inthe unlocked or open position. FIG. 57 illustrates the gate 1530 in anengaged or closed position and the latch member 1532 in the lockedposition. In some embodiments, when the latch member 1532 is in theunlocked position (as shown in FIGS. 55-56), the gate 1530 can rotatefreely. However, when the latch member 1532 is in the locked position(as shown in FIG. 57), the gate 1530 can be constrained againstrotation.

For example, the latch member 1532 can comprise an elongate body havinga slot 1540 formed therein. The slot 1540 can be configured to receive ahinge pin 1542 that forms a pivot joint with the frame 1508, the gate1530, and an earstem (not shown). The slot 1540 can be an elongate slotsuch that when the pin 1542 is received therein, the pin 1542 can travelbetween first and second ends of the slot, which can provide relativesliding movement between the pin 1542/frame 1508 and the latch member1532. For example, the slot 1540 can define a travel distance of betweenat least about 0.1 inches and/or less than or equal to about 0.5 inches.In some embodiments, the travel distance can be about 0.3 inches. Insuch an embodiment, the latch member 1532 can slide between at least twopositions, such as the locked and unlocked positions mentioned above. Inthe locked position, the pin 1542 is disposed in a first end of the slot1540, and in the unlocked position, the pin 1542 is disposed in a secondend of the slot 1540. In order to facilitate movement of the latchmember 1532, the latch member 1532 can comprise a tab or gripping endthat enables a wearer to grip and pull or push the latch member 1532between the locked and unlocked positions.

The latch member 1532 can also be configured to engage a portion of theframe 1508 for preventing movement of the gate 1530 relative to theframe 1508. The latch member 1532 can comprise an engaging end 1550having a tooth or projection formed thereon. When in the lockedposition, as shown in FIG. 57, the engaging end 1550 of the latch member1532 can contact against a portion 1552 of the frame 1508 to preventrotation of the latch member 1532.

In some embodiments, the engaging end 1550 can define a slot forreceiving the portion 1552 of the frame 1508. The illustrated embodimentof FIG. 58 shows a pair of opposing teeth with a slot disposedtherebetween. The slot of the engaging end 1550 can thereby receive theportion 1552 of the frame 1508 and resist rotational movement in eitherdirection relative to the frame 1508. Further, the engaging end 1550 canfurther comprise an engagement mechanism for engaging with acorresponding structure of the portion 1552 of the frame 1508 formaintaining the latch member 1532 in the locked position. The engagementmechanism can comprise a protrusion and/or recess for engaging (i.e., byfrictional or snap engagement) with a corresponding recess and/orprotrusion of the frame 1508.

Further, as illustrated in FIG. 58, in some embodiments, the latchmember 1532 and the gate 1530 can be rotationally coupled relative toeach other and in contact such that the gate 1530 cannot rotate withoutthe latch member 1532 and visa versa. Thus, the sliding movement of thelatch member 1532 between locked and unlocked positions to prevent orpermit rotational movement of the latch member 1532 also prevents orpermits movement of the gate 1530 relative to the frame 1508.Accordingly, in some embodiments, rotational movement of the gate 1530can be restrained relative to the frame 1508 by sliding the latch member1532 between locked and unlocked positions. The latch member 1532 canpivot along with the gate 1530 when the latch member 1532 is in theunlocked position, as shown in FIG. 58, because the engaging end 1550 ofthe latch member 1532 has been pulled back to provide rotationalclearance from the portion 1552 of the frame 1508 that would otherwiseprevent rotation of the latch member 1532 if the latch member 1532 werein the locked position.

Referring again to FIGS. 53 and 54, in some embodiments, the lens 1506and the frame 1508 can comprise corresponding engagement structuresdisposed adjacent to the second end 1528 of the frame 1508 for enhancingthe engagement of the lens 1506 relative to the frame 1508. Theengagement structures can comprise corresponding slots, protrusions,and/or recesses that engage with each other to provide further stabilityand engagement. In the illustrated embodiment, the lens 1506 can furthercomprise an aperture 1560 and the frame can further comprise aprotrusion 1562. The protrusion 1562 can be received into the aperture1560 of the lens 1506. This engagement can provide initial stability andfixation when installing the lens 1506 into the frame 1508. Thereafter,the gate 1530 can be closed to cover a portion of the second lateral end1528 of the lens 1506 to provide additional constraint of the lens 1506relative to the frame 1508.

Further, in some embodiments, the gate 1530 can comprise a correspondingretention structure 1564 configured to engage with a portion of the lens1506 and/or a portion of the frame 1508. The retention structure 1564can comprise a protrusion, slot, and/or recess that that can provide afurther engagement of the gate 1530 relative to the frame 1508. Forexample, a protrusion of the gate 1530 could be snap fitted into anaperture or edge of the frame 1508 to reduce accidental dislodgement ofthe gate 1530 from the engaged position.

Additionally, although FIGS. 52-58 illustrate an embodiment of aneyeglass having a partial orbital, it is contemplated that thesefeatures can also be implemented with a full orbital frame.Additionally, the alternative lens retention mechanisms disclosedfurther above can also be incorporated into eyewear, such as an eyeglasshaving partial or full orbitals.

In addition, in accordance with some of the embodiments of the gogglediscussed above, the present inventions also provide for methods ofinterchanging/modifying anterior and/or posterior modules of the goggle,an isostatic faceplate of the goggle, a lens and/or retention mechanismof the goggle, and/or a rigid faceplate of the goggle. Thus, variousmethods are provided for using and interchanging/modifying the goggleusing a modular system to incorporate desired characteristics andproperties utilizing one or more of the features of the goggleembodiments discussed above. These methods can be performed at apoint-of-sale by a seller or periodically as needed by an owner/wearer.The methods can be performed in a single instance or repeatedly over thelife of the goggle. Kits can also be provided that can include one ormore of the components discussed above and/or other components for usewith an embodiment of the goggles.

Although these inventions have been disclosed in the context of certainpreferred embodiments and examples, it will be understood by thoseskilled in the art that the present inventions extend beyond thespecifically disclosed embodiments to other alternative embodimentsand/or uses of the inventions and obvious modifications and equivalentsthereof. In addition, while several variations of the inventions havebeen shown and described in detail, other modifications, which arewithin the scope of these inventions, will be readily apparent to thoseof skill in the art based upon this disclosure. It is also contemplatedthat various combination or sub-combinations of the specific featuresand aspects of the embodiments may be made and still fall within thescope of the inventions. It should be understood that various featuresand aspects of the disclosed embodiments can be combined with orsubstituted for one another in order to form varying modes of thedisclosed inventions. Thus, it is intended that the scope of at leastsome of the present inventions herein disclosed should not be limited bythe particular disclosed embodiments described above.

What is claimed is:
 1. Eyewear comprising: a frame; a lens configured tobe fitted against the frame; an engagement mechanism comprising a gate,a hinge pin, and a latch member, the gate being coupled to the frame andbeing operative to move along a first path between an open position anda closed position, the latch member being functionally connected to thegate and being constrained to move along the first path together withthe gate upon movement of the gate, the latch member further beingmovable relative to the gate along a second path between a disengagedposition and an engaged position to disengage or engage with at leastone of the lens and a portion of the frame to prevent movement of thegate relative to the frame when the latch member is in the engagedposition to maintain the lens fitted against the frame, wherein thefirst path is different from the second path, the first path being arotational path, wherein the hinge pin defines a generally vertical axisabout which the gate and the latch member rotate when moving between theopen position and the closed position.
 2. The eyewear of claim 1,wherein the latch member is slidable relative to the gate.
 3. Theeyewear of claim 2, wherein the second path is a generally linear path.4. The eyewear of claim 3, wherein the linear path is generallyhorizontal.
 5. The eyewear of claim 1, further comprising a biasingmember disposed intermediate the latch member and the gate, the biasingmember being configured to urge the latch member to the engagedposition.
 6. The eyewear of claim 1, wherein the lens is a unitary lens.7. The eyewear of claim 1, wherein the engagement mechanism is locatedin a first lateral region of the eyewear.
 8. The eyewear of claim 7,further comprising a second engagement mechanism located in a secondlateral region of the eyewear.
 9. The eyewear of claim 8, wherein thesecond engagement mechanism comprises a protrusion for receiving arecess on the lens.
 10. The eyewear of claim 1, wherein the engagementmechanism comprises a protrusion that is received in a recess or slot onthe lens.
 11. Eyewear comprising: a frame; a lens configured to befitted against the frame; an engagement mechanism comprising a gate, ahinge pin, and a latch member, the gate being coupled to the frame andbeing operative to move along a first path between an open position anda closed position, the latch member being functionally connected to thegate and being constrained to move along the first path together withthe gate upon movement of the gate, the latch member further beingmovable relative to the gate along a second path between a disengagedposition and an engaged position to disengage or engage with at leastone of the lens and a portion of the frame to prevent movement of thegate relative to the frame when the latch member is in the engagedposition to maintain the lens fitted against the frame, wherein thefirst path is different from the second path, the first path being arotational path, wherein the hinge pin defines a first rotational axisabout which the gate and the latch member rotate when moving between theopen position and the closed position, wherein the latch membercomprises an elongate slot and wherein the hinge pin passes through theelongate slot when the latch member and the gate are in an assembledstate.
 12. The eyewear of claim 11 wherein the latch member is slideablerelative to the gate such that the hinge pin moves between first andsecond ends of the elongate slot when the latch member is moved betweenthe disengaged and engaged positions.
 13. Eyewear comprising: a frame; alens configured to be fitted against the frame; an engagement mechanismcomprising a gate and a latch member, the gate being coupled to theframe and being operative to move along a first path between an openposition and a closed position, the latch member being functionallyconnected to the gate and being constrained to move along the first pathtogether with the gate upon movement of the gate, the latch memberfurther being movable relative to the gate along a second path between adisengaged position and an engaged position to disengage or engage withat least one of the lens and a portion of the frame to prevent movementof the gate relative to the frame when the latch member is in theengaged position to maintain the lens fitted against the frame, whereinthe first path is different from the second path, wherein the latchmember comprises an engaging end configured to mate against at least oneof the frame and the lens, the engaging end of the latch membercomprising a toothed portion having a ramped surface, the ramped surfacebeing configured to contact the frame as the latch member is moved fromthe disengaged position to the engaged position.